Global supply chains move goods worth trillions of pounds across borders
every year. Yet, Walk Free’s Global Slavery Index estimates that 50 million
people were living in modern slavery on any given day in 2021, including 28
million in forced labour. That figure rose by 10 million in five years. Behind
competitive pricing and reliable delivery, real people are sometimes coerced,
deceived or trapped in debt to produce the goods organisations buy.
The hardest risks usually sit beyond the immediate supplier. Buyers
often know their Tier 1 relationships well while having almost no visibility of
the factories, farms, mines and labour agencies operating further upstream. The
G20 alone imports an estimated £370 billion of goods at risk of modern slavery
each year, spanning electronics, garments, palm oil and solar panels.
Exploitation flourishes precisely where poverty, migration and weak enforcement
intersect with commercial distance.
Responsibility cannot rest with suppliers alone. The ILO calculates that
forced labour generates £185 billion in illegal profits worldwide annually,
much of it extracted through underpaid wages and unlawful recruitment fees.
Buying organisations shape working conditions through the prices they
negotiate, the lead times they demand and the payment terms they impose.
Commercial pressure travels fast through supply chains until it reaches whoever
has the least bargaining power to resist it.
Technology, mapping tools, independent verification, and worker
engagement all strengthen an organisation’s ability to identify hidden risks,
but none is sufficient on its own. An audit can miss concealed exploitation; a
certificate can offer false reassurance; artificial intelligence can only
interpret the data fed into it. Effective human rights due diligence therefore
combines evidence, professional judgement and meaningful worker voice with a
genuine willingness to investigate uncomfortable findings.
Ethical sourcing is not demonstrated by declaring zero tolerance for
forced or child labour. It is demonstrated by building procurement systems
capable of discovering exploitation, preventing foreseeable harm and delivering
effective remediation when problems occur. Complete visibility across every
tier may remain elusive, but ignorance becomes harder to defend as credible
risk indicators multiply. Commercial value should never depend on exploiting
people who remain invisible to the organisations that ultimately benefit from
their labour.
Why Human Rights Abuses Persist in Global Supply Chains
Human rights abuses persist partly because supply chains have become
extraordinarily complex. A single product may pass through manufacturers,
processors, labour agencies, farms, mines and subcontractors spread across a
dozen countries before reaching a UK buyer. Each additional tier adds distance
between the purchasing organisation and the people performing the work. That
distance reduces visibility, fragments accountability and lets forced labour
and exploitative conditions remain concealed from view.
Economic pressure compounds the problem. Suppliers operating on margins
as thin as 2–3% face demanding prices, short lead times and penalties for late
delivery. These pressures cascade downward, where smaller subcontractors
typically hold the least bargaining power and the weakest employment controls.
Excessive overtime, withheld wages, illegal recruitment fees and unauthorised
subcontracting often emerge as suppliers attempt to meet commercial terms that
cannot realistically be met under lawful, safe labour conditions.
Weak governance widens the gap further. Labour laws may exist on paper
in high-risk sourcing countries, but enforcement is often inconsistent due to
scarce inspection resources, widespread informal employment, or corruption that
undermines oversight. Migrant, child and temporary workers, who make up a
disproportionate share of the 27.6 million people in forced labour worldwide,
often have little practical ability to challenge an abusive employer without
risking dismissal or deportation.
Organisations can unintentionally sustain abuse by relying too heavily
on supplier declarations, codes of conduct and scheduled audits. A Tier 1
supplier may pass every compliance check while purchasing materials from
subcontractors that receive far less scrutiny, exactly the pattern later
exposed in Leicester’s garment sector, where workers were found earning as
little as £3.50 an hour against a legal minimum of £8.72. Ethical sourcing
demands that buyers look beyond the contract and ask where the labour risk
actually sits.
Beyond Tier 1: Understanding the Multi-Tier Supply Chain
A Tier 1 supplier is the organisation with which the buyer holds a
direct contract, but it rarely represents the whole supply chain. Behind it
typically sit manufacturers, subcontractors, processors, labour agencies and
raw-material producers whose activities contribute directly to the finished
product or service. Understanding these relationships matters because serious
human rights risks frequently arise beyond the organisations that receive
purchase orders and undergo routine supplier assessments.
Tier 2 suppliers generally provide goods, components or services to Tier
1 businesses, while Tier 3 organisations supply those operating at Tier 2. The
chain can stretch considerably further for commodities, electronics, textiles,
food and construction materials. Eventually, procurement activity connects with
farms, mines, plantations or informal workshops thousands of miles from the
buyer, where contractual influence typically diminishes precisely as human
rights exposure increases.
The structure is rarely a simple linear chain. Modern supply networks
resemble interconnected webs in which manufacturers source from numerous
suppliers, intermediaries consolidate materials from different origins, and
subcontractors redistribute work when capacity is constrained. Labour providers
add a further layer by recruiting workers separately from the businesses that
ultimately employ them, meaning even suppliers themselves may lack full
knowledge of everyone contributing to their own production.
This complexity matters because the risk of human rights violations is
not evenly distributed across a supply chain. A UK distributor may pose
relatively little labour risk, while the overseas factory producing its goods
operates in weaker regulatory territory. Further upstream, raw materials might
originate from regions associated with child labour, debt bondage or dangerous
conditions; the G20’s £370 billion in annual at-risk imports illustrates the
scale involved. Assessing only Tier 1 performance can create a false impression
of compliance.
Effective ethical sourcing consequently requires organisations to
understand supply chains according to risk rather than attempting to map every
supplier at every tier simultaneously. Priority should go to high-risk
commodities, countries, production processes and workforce arrangements,
followed by progressively deeper investigation where exposure warrants it.
Mapping transforms an unknown network into a manageable risk structure, allowing
procurement teams to direct scarce due diligence resources to where workers are
genuinely most vulnerable.
The Deep-Tier Visibility Gap
Most organisations hold reasonable information about direct suppliers
but lose visibility rapidly further upstream. Procurement systems typically
record the entity that received the purchase order, not every business involved
in producing the materials, components, or services included in it. A Tier 1
supplier may itself purchase through distributors, agents and subcontractors,
leaving the buyer several commercial relationships removed from the workplace
where meaningful oversight becomes genuinely difficult.
Visibility is weakened further by constantly changing supply networks.
Suppliers may switch factories, appoint new subcontractors, use temporary
labour agencies or source commodities through intermediaries without informing
customers. During peak demand, production can even shift to unauthorised
facilities to meet deadlines. Standard supplier questionnaires capture
conditions at a single point in time and cannot reliably reveal these changes,
leaving buyers dependent on information that quickly ages.
Commercial reluctance creates a further barrier. Suppliers may treat
details of their upstream relationships as commercially sensitive, since
disclosure could expose pricing structures or strategically important sourcing
decisions. Smaller suppliers frequently lack the systems needed to map their
own extended networks in the first place. Buyers therefore encounter resistance
even when requesting legitimate transparency, which is why disclosure
requirements should be included in contracts from the outset rather than
introduced only after concerns have surfaced.
Complete visibility across every supplier and subcontractor is
unrealistic for organisations managing thousands of product lines and complex
international networks. The objective should be meaningful visibility rather
than exhaustive data collection. Procurement teams can prioritise the
highest-risk countries, commodities and labour models, requiring deeper
disclosure precisely where exposure is greatest, combined with traceability
tools and independent intelligence to concentrate resources where hidden relationships
could cause the most serious harm.
High-Risk Countries, Sectors and Commodities
Human rights exposure varies significantly between sourcing locations,
industries and commodities. Walk Free ranks North Korea, Eritrea and Mauritania
as having the highest prevalence of modern slavery, while Switzerland, Norway
and Germany rank lowest, reflecting the strength of governance and enforcement.
Migrant workers face additional risk where employment depends on recruitment
agents or employer-controlled immigration status. Country risk should inform
due diligence, though geography alone should never determine whether a
workforce is assumed compliant.
Certain sectors carry heightened risk because their commercial
structures depend heavily on low-skilled, temporary or migrant labour.
Agriculture, construction, textiles, fishing, mining, hospitality and cleaning
regularly require particular scrutiny. Long subcontracting chains intensify
exposure because responsibility for employment fragments among contractors and
agencies. Where labour represents a substantial share of cost on narrow
margins, commercial pressure can directly encourage practices that undermine
wages, hours and basic employment protections.
Commodity risk extends exposure well beyond the immediate supplier’s
location. Cocoa, coffee, cotton, palm oil, rubber and timber can originate
within fragmented networks involving smallholder farms and informal labour. At
the same time, minerals used in electronics and batteries pass through mines,
traders and smelters before reaching manufacturing. The Rana Plaza collapse in
Dhaka in April 2013, which killed 1,134 garment workers producing for at least
29 international brands, remains the starkest reminder of how far commercial
pressure can travel before it kills.
Risk also arises from how workers are recruited rather than simply what
they produce. Recruitment fees, withheld passports, employer-controlled
accommodation and debt bondage make migrant workers particularly vulnerable to
forced labour. Children enter supply chains where household poverty and weak
access to education intersect; UNICEF and the ILO estimate 160 million children
remain in child labour worldwide. Procurement assessments should examine
recruitment arrangements alongside conventional country and commodity
indicators.
High risk does not automatically mean organisations should withdraw from
a country, sector or commodity. Immediate withdrawal can result in the loss of
legitimate employment without addressing root causes and may shift business to
less responsible buyers. A stronger approach is risk-based sourcing: identify
heightened exposure, investigate suppliers more deeply, establish proportionate
controls and verify improvement. Where serious abuse cannot be prevented or
remedied, continued commercial relationships may ultimately become
unacceptable.
UK and International Human Rights Legislation
Human rights responsibilities within supply chains are shaped by
overlapping national legislation and international standards. In the UK,
organisations must navigate requirements addressing modern slavery, employment
rights, discrimination, health and safety, bribery and corporate governance,
alongside procurement-specific obligations under the Procurement Act 2023 where
applicable. The legal direction increasingly reflects one principle: serious
labour exploitation within a supply network cannot be treated as separate from
an organisation’s own governance simply because it occurs overseas.
Internationally, the framework extends beyond individual national laws.
The UN Guiding Principles on Business and Human Rights establish expectations
for businesses to respect human rights, conduct due diligence and address
adverse impacts with which they are involved. ILO conventions set fundamental
standards on forced labour, child labour, discrimination, and freedom of
association. OECD guidance translates these into practical due diligence
principles for identifying, preventing and accounting for adverse impacts
throughout supply chains.
The regulatory direction favours greater corporate accountability and
evidence-based due diligence. Multinational organisations increasingly
encounter different legal requirements across jurisdictions, including the EU’s
Corporate Sustainability Due Diligence Directive, while smaller UK suppliers
face similar expectations indirectly through customer contracts. Procurement
professionals must therefore distinguish minimum legal compliance from
effective human rights governance, since meeting statutory requirements alone
rarely demonstrates that significant risks are actively identified, addressed
and monitored.
The Modern Slavery Act and the Changing UK Regulatory Landscape
The Modern Slavery Act 2015 established an important framework for
addressing slavery, servitude, forced labour and trafficking in the UK. Section
54 introduced supply chain transparency requirements for qualifying commercial
organisations with annual turnover of at least £36 million. These organisations
must publish an annual slavery and human trafficking statement explaining the
steps taken to prevent modern slavery within their operations and supply
chains, or disclose that no such steps occurred.
The legislation significantly raised board-level awareness, but its
transparency model has real limitations. It principally requires organisations
to report their actions rather than prescribe a mandatory due diligence process
or guarantee effectiveness, and the quality of statements has varied
considerably. In 2024, 19,125 potential victims were referred into the UK’s
National Referral Mechanism, a 13% rise on the previous year and the highest
annual figure since the mechanism began in 2009, suggesting reporting alone has
not curbed exploitation.
The wider UK regulatory environment continues to evolve. From April
2026, the new Fair Work Agency consolidated HMRC’s minimum wage enforcement,
the Employment Agency Standards Inspectorate and the Gangmasters and Labour
Abuse Authority into a single body with stronger civil penalty powers,
including fines of up to £20,000 per underpaid worker. International
developments, including the EU’s due-diligence directive, are also shaping
expectations for UK businesses supplying overseas customers, so procurement
teams cannot treat Modern Slavery Act compliance as a complete framework.
Strong governance therefore moves beyond producing an annual statement.
Organisations should integrate modern slavery risk into procurement strategy,
supplier selection, contract management and escalation procedures. The Home
Office estimates the total cost of modern slavery to UK society at between £3.3
billion and £4.3 billion a year, or roughly £330,000 per victim once support
services, lost output and enforcement are included, underlining why prevention
delivers far greater value than remediation after the fact.
International Standards and Due-Diligence Frameworks
International standards give organisations a structured foundation for
managing human rights risk where domestic legislation alone offers limited
guidance. The UN Guiding Principles on Business and Human Rights are
particularly influential, establishing the corporate responsibility to respect
internationally recognised rights. They expect businesses to avoid causing or
contributing to adverse impacts, address impacts when they occur, and prevent
or mitigate harm directly linked to their operations through business
relationships, including those several tiers removed from the buyer.
The OECD Guidelines for Multinational Enterprises translate these
principles into a practical approach. Organisations are expected to embed
responsible conduct into policies and management systems, identify and assess
adverse impacts, prevent or mitigate them, monitor implementation and
communicate how impacts are addressed. Where harm has occurred, businesses
should provide or cooperate in remediation. Due diligence is continuous and
risk-based, rather than a single questionnaire completed during onboarding.
ILO standards provide the employment principles against which workplace
conditions can be assessed: freedom of association, elimination of forced
labour, abolition of child labour, non-discrimination and safe working
environments. These matter most where domestic enforcement is weaker.
Procurement teams can incorporate relevant expectations into supplier codes,
specifications, contractual requirements, and ongoing monitoring, recognising
that the ILO now estimates 27.6 million people are in forced labour globally,
up from 24.9 million a decade earlier.
More specialised frameworks strengthen due diligence in particular
commodities. OECD guidance covers minerals, garments and footwear, while
certification and traceability schemes operate across forestry, cocoa and
cotton supply chains. Such mechanisms provide valuable evidence, but
certification should never be automatically treated as proof that abuse is
absent; procurement professionals should understand what each scheme actually
examines and whether its coverage extends to higher-risk tiers.
Taken together, these frameworks establish a common principle:
responsible organisations should know where significant human rights risks
exist and demonstrate what they are doing about them. Effective due diligence
is proportionate to severity and likelihood rather than simply supplier spend.
A relatively small contract involving vulnerable migrant labour may warrant
greater scrutiny than a considerably larger, lower-risk purchase, concentrating
resources where potential harm to people is genuinely greatest.
Embedding Human Rights into Procurement Strategy
Human rights considerations work best when built into procurement
strategy before individual sourcing exercises begin. Organisations should
define ethical sourcing principles, identify significant areas of exposure and
set clear expectations for suppliers from the outset. Category strategies can
then weigh country, sector, commodity, and workforce risk alongside price,
quality, and continuity, preventing human rights from becoming an afterthought
considered only once commercial decisions have already been made.
Risk segmentation allows procurement teams to apply proportionate
controls rather than identical requirements for every purchase. Low-risk
categories may require standard contractual provisions and basic declarations,
while higher-risk categories warrant enhanced due diligence, supply chain
mapping, independent verification, and ongoing monitoring. Strategies should
document why particular controls were selected, creating an auditable
connection between identified exposure, sourcing decisions and the scrutiny
subsequently applied to individual suppliers.
Commercial objectives must also support responsible employment.
Strategies that prioritise lower prices, shorter lead times and maximum
flexibility can unintentionally transfer unsustainable pressure onto suppliers
and, ultimately, workers. Ethical sourcing requires consideration of payment
terms, forecasting accuracy, and realistic delivery expectations, since a
supplier absorbing a 10% price cut on a 3% margin has few options besides
cutting wages, hours, or safety spending to survive.
Responsibility should continue throughout the contract lifecycle rather
than ending at supplier appointment. Human rights expectations can be built
into specifications, evaluation criteria, contractual obligations, key
performance indicators and supplier reviews. Clear escalation and remediation
procedures should determine how concerns are investigated and addressed.
Embedding these mechanisms makes respect for human rights part of routine
commercial decision-making rather than a separate corporate responsibility
exercise running alongside procurement.
Pre-Qualification and Supplier Due Diligence
Pre-qualification offers an early opportunity to identify human rights
risk before an organisation enters a contractual relationship. Assessments
should examine more than whether policies exist, considering ownership
structures, operating locations, subcontracting arrangements, workforce
composition and exposure to high-risk commodities or countries. Questions
concerning modern slavery, recruitment practices, and previous violations can
reveal genuine concerns, but responses should be supported by proportionate
evidence rather than automatic acceptance simply because a supplier completed a
standard questionnaire.
Due diligence should deepen progressively as identified risk increases.
Lower-risk suppliers may require basic declarations and policy evidence, while
higher-risk suppliers may require supply chain mapping, independent audit
reports, worker information, and evidence of corrective action. Procurement
teams should also consult credible external risk intelligence, such as
country-level indices or sector-specific alerts, since a supplier’s willingness
to disclose meaningful information itself signals whether governance extends
beyond formal paperwork.
Due diligence should inform procurement decisions rather than merely
generate documentation for the contract file. Significant concerns may require
clarification, enhanced contractual safeguards or further verification before
award; where risks cannot be adequately controlled, the organisation may need
to reconsider appointment altogether. Suppliers demonstrating transparency and
credible improvement should not automatically be excluded because risk exists,
since effective due diligence distinguishes unmanaged exploitation from
suppliers genuinely working to prevent harm.
Contractual Requirements and Supplier Codes of Conduct
Contracts translate an organisation’s human rights commitments into
enforceable obligations for suppliers. Appropriate provisions can require
compliance with applicable labour legislation, prohibit forced and child
labour, establish minimum employment standards consistent with applicable
statutory wage requirements and recognised international labour standards, and
require equivalent expectations to pass through relevant subcontracting
arrangements. Clear obligations establish, from the outset, that responsible
labour practices are part of contractual performance rather than a voluntary
aspiration.
Supplier codes of conduct complement contractual provisions by setting
out expected behaviours in greater practical detail, addressing working hours,
wages, recruitment fees, freedom of movement and treatment of migrant workers.
Effective codes should apply proportionately throughout relevant supply chain
tiers and require suppliers to communicate expectations to their own
subcontractors. Requiring suppliers to accept a code provides little assurance,
however, unless compliance is subsequently monitored against credible evidence.
Contracts should provide appropriate rights to obtain information, map
relevant supply chains, commission audits and investigate suspected breaches.
Suppliers may also be required to disclose material changes to production
locations or labour providers, which is particularly important where
unauthorised subcontracting could shift production to facilities that present
greater risk. Audit and information rights should nevertheless remain
proportionate and practically exercisable rather than becoming extensive
clauses that buyers never actually enforce.
Remedies should distinguish deliberate exploitation, inadequate controls
and problems that suppliers identify transparently and seek to correct.
Automatic termination for every breach can discourage disclosure and worsen
outcomes for affected workers. Contracts can instead provide corrective action
plans, remediation requirements, escalation mechanisms and termination rights
reserved for serious, repeated or unresolved violations, combining
enforceability with responsible remediation rather than simply transferring
risk elsewhere.
Mapping Tier 2, Tier 3 and Deep-Tier Suppliers
Supply chain mapping traces the organisations, locations and activities
that sit behind a direct supplier. Beginning with Tier 1, procurement teams can
identify key Tier 2 manufacturers and service providers before progressively
examining Tier 3 suppliers, processors, and raw material sources. The objective
is not to map every commercial relationship immediately, but to establish
sufficient traceability to investigate the people, processes and locations
associated with genuine risk.
Mapping should prioritise categories in which country, commodity, or
workforce characteristics indicate heightened vulnerability. Suppliers may be
required to disclose production sites, significant subcontractors, and sources
of critical materials, supported, where appropriate, by transaction records or
traceability data that identify where production actually occurs rather than
merely corporate headquarters. Visualising these relationships can reveal
geographic concentrations and dependency on organisations that have never
undergone meaningful human rights assessment.
Deep-tier mapping should be treated as an evolving process because
supply networks continually change: new subcontractors emerge, factories
relocate, and commodity sources vary with the seasons. Procurement teams should
establish triggers requiring suppliers to report material changes and
periodically refresh higher-risk maps. Combined with risk intelligence and
worker-level evidence, mapping moves organisations beyond assumptions and directs
due-diligence resources towards the points of greatest potential harm.
Verifying Labour Conditions Rather Than Accepting Supplier Assurances
Supplier assurances are an important starting point, but they cannot
provide sufficient evidence that workers are treated responsibly. Policies and
codes of conduct describe what should happen rather than what actually occurs
in factories, farms, or subcontracted workplaces. Suppliers may possess
sophisticated ethical sourcing documentation while weaknesses remain further
upstream, so procurement teams should distinguish stated compliance from
verified conditions, particularly where country or workforce characteristics
indicate elevated risk.
Verification requires evidence from multiple sources rather than
reliance on a single supplier response. Employment records, payroll data,
working-hour logs, recruitment documentation and health and safety records can
help establish whether stated standards reflect reality. This is precisely
where the Leicester garment sector failed: suppliers holding apparently
satisfactory paperwork were simultaneously paying workers roughly 40% below the
legal minimum wage, a gap that ordinary desk-based documentation review never
surfaced.
Workers themselves provide essential evidence because exploitation may
be invisible within management records. Confidential interviews, independent
surveys, trade union engagement and accessible grievance mechanisms can reveal
excessive hours, intimidation, recruitment fees or restrictions on movement
that conventional assessments overlook. Worker engagement should be designed
carefully to prevent retaliation. Where language, immigration status or
employment insecurity creates vulnerability, independent facilitators
significantly improve the reliability of information obtained.
Verification should also extend beyond scheduled site visits, since
suppliers can prepare facilities and documentation for announced audits,
creating an artificially compliant picture. Risk-based unannounced visits,
independent investigations and triangulation with external intelligence provide
stronger assurance where circumstances justify them. Procurement teams should
compare evidence from different sources rather than treating any single audit
or database result as definitive proof that conditions across an extended
supply network are acceptable.
The purpose of verification is not to prove that every supplier is
entirely free from risk, but to establish whether credible systems exist to
identify and address harm. Organisations should investigate warning signs,
document findings, agree corrective actions and monitor whether improvements
actually occur. Suppliers that disclose problems and remediate them effectively
may provide greater assurance than those claiming perfect compliance, since
ethical sourcing depends on evidence and continuous improvement rather than
contractual promises alone.
Supplier Audits: Strengths, Weaknesses and False Assurance
Supplier audits remain an important component of human rights due
diligence because they provide structured opportunities to examine working
conditions, employment records and compliance with agreed standards. Effective
audits can identify unsafe workplaces, excessive hours, unlawful deductions and
weaknesses in subcontractor controls, creating evidence against which
corrective actions can be monitored. When targeted according to risk and
conducted competently, audits provide considerably stronger assurance than
supplier declarations alone.
However, audits capture conditions at a particular location and at a
particular moment in time. Announced visits allow suppliers to prepare
facilities, records, and workers in advance, while even unannounced audits may
fail to expose practices deliberately concealed from inspectors. Workers can be
reluctant to speak openly for fear of dismissal, particularly when interviews
take place in the workplace. Fraudulent records and coached employees can
consequently produce apparently satisfactory results while serious exploitation
remains hidden elsewhere in the chain.
False assurance arises when organisations treat a successful audit as
proof that risk has been eliminated. An audited Tier 1 factory may meet
required standards. At the same time, production is simultaneously
subcontracted to unexamined facilities, exactly the pattern behind Rana Plaza,
where the building’s owner had illegally added extra storeys housing garment
production never assessed against any safety standard. A high audit score
demonstrates only what the methodology successfully examined; it cannot
establish that unidentified problems do not exist.
Auditing should consequently be one element of a broader assurance
system that incorporates mapping, worker voice, risk intelligence, and
continuous supplier monitoring. Findings should be analysed for recurring
patterns rather than treated as isolated failures, with corrective actions
assigned clear responsibilities and deadlines. The strongest assurance comes
from triangulating evidence from different sources, explicitly recognising that
no single audit methodology can provide complete visibility across a complex,
multi-tier supply chain.
Worker Voice, Grievance Mechanisms and Independent Verification
Worker voice provides insight that management systems, documentation and
conventional audits cannot always capture. Employees may directly experience
excessive hours, withheld wages, recruitment fees or intimidation while
official records suggest compliance. Confidential interviews, anonymous
surveys, trade union engagement, and independent worker hotlines can
considerably strengthen due diligence. These mechanisms are particularly
valuable where migrant, temporary or agency workers may be reluctant to raise
concerns directly with supervisors.
Effective grievance mechanisms must be accessible, confidential and
genuinely trusted by the people expected to use them. Workers should understand
how to report concerns in appropriate languages without paying fees or risking
retaliation or dismissal. Complaints should trigger defined investigation,
escalation and remediation processes, with outcomes actively monitored. An
apparently perfect record containing no grievances may indicate fear or lack of
awareness rather than satisfactory conditions.
Independent verification strengthens assurance by separating evidence
gathering from organisations with a commercial interest in demonstrating
compliance. Specialist auditors, non-governmental organisations, trade unions
and other credible third parties can provide additional perspectives,
particularly within high-risk locations. Their findings should be triangulated
with supplier information and worker testimony rather than treated as
automatically definitive, making concealed exploitation considerably more
difficult to sustain over time.
Technology, Traceability and Supply Chain Transparency
Technology can significantly improve supply chain transparency by
connecting information that traditionally sits across separate procurement,
logistics and supplier systems. Digital platforms can record supplier
identities, production locations, subcontractors and material origins, building
more detailed pictures of extended supply networks. Combined with geographic
and human rights risk data, these systems can highlight where particular
countries, commodities, or workforce models require greater scrutiny and help
procurement teams prioritise limited due diligence budgets.
Traceability technologies follow products and materials through
successive stages of production. Digital product records, serialisation,
blockchain-based systems, and specialised commodity platforms can create
auditable links between raw materials, processors, manufacturers, and finished
goods, which are particularly valuable when materials pass through numerous
intermediaries before reaching Tier 1. Traceability nevertheless depends on
reliable information being entered at source; sophisticated technology cannot
transform incomplete or deliberately falsified data into credible evidence.
Greater transparency also supports continuous monitoring rather than
periodic supplier assessment. Procurement platforms can combine audit findings,
corrective actions, supplier disclosures, adverse media, and sanctions
information into dashboards that automatically flag emerging concerns. This
enables organisations to move from static annual questionnaires towards more
dynamic oversight, though alerts should trigger informed human assessment
rather than automatically determining whether a supplier is compliant.
Technology should therefore strengthen rather than replace human rights
due diligence. Digital traceability can reveal relationships and anomalies, but
it cannot independently establish whether workers are experiencing coercion or
intimidation. Effective transparency combines reliable supply chain data with
worker voice, independent verification and professional judgement, converting
greater visibility into timely intervention wherever evidence indicates that
people within the supply chain may be exposed to harm.
AI and Data Analytics in Human Rights Risk Detection
Artificial intelligence and data analytics can strengthen human rights
due diligence by identifying patterns across volumes of information that
procurement teams could never realistically review manually. Systems can
combine supplier records, audit findings, geographic risk indicators, adverse
media and workforce data to highlight potentially higher-risk relationships.
Predictive models may detect unusual patterns, such as repeated subcontracting
changes, enabling professionals to prioritise suppliers requiring closer
investigation.
Analytics become particularly valuable when organisations combine
internal procurement information with credible external intelligence. Spend
data, supplier locations, commodity classifications and corrective actions can
be analysed alongside country and sector risk indicators to create dynamic risk
profiles. Natural-language processing can also screen large volumes of
reporting for emerging allegations, shifting human rights monitoring from
periodic assessment to continuous detection and allowing potential warning
signs to surface earlier than an annual review cycle would.
AI nevertheless creates risks of its own. Models may reproduce biases
within underlying datasets, generate false positives or overlook exploitation
that has never been documented digitally, as is common with informal or
undocumented labour. Poor-quality supplier information can create an illusion
of analytical precision without reliable evidence to back it up. Human
oversight remains essential, with AI prioritising investigation over autonomous
compliance determination.
The Role of Procurement Professionals
Procurement professionals occupy a critical position because they
influence which suppliers receive business and the commercial conditions under
which contracts operate. Their responsibilities extend beyond obtaining
competitive prices to understanding whether sourcing decisions create
unacceptable human rights exposure. This requires identifying higher-risk
categories, conducting proportionate due diligence, and ensuring that
appropriate contractual safeguards are established, making ethical sourcing
part of professional commercial judgement rather than a separate corporate
responsibility.
Procurement teams also influence supplier behaviour through everyday
purchasing decisions. Unrealistic lead times, aggressive price reductions and
unpredictable order volumes can place pressure on suppliers that ultimately
reaches workers through excessive overtime, insecure employment or unauthorised
subcontracting. Professionals should therefore consider whether commercial
requirements are consistent with the labour standards demanded from suppliers,
combining commercial challenge with realistic planning and collaborative
improvement where genuine weaknesses are identified.
Procurement professionals cannot eliminate human rights abuse on their
own, but they can ensure that warning signs are neither overlooked nor treated
as somebody else’s responsibility. Serious concerns may require collaboration
with legal, compliance, sustainability and independent specialists. Procurement
should maintain appropriate records, escalate credible allegations and monitor
remediation throughout the contract lifecycle, connecting ethical commitments
with the commercial decisions that determine how organisations actually spend
public and private money.
Price Pressure, Purchasing Practices and Unintended Consequences
Human rights risk is not created solely by supplier behaviour. The
purchasing practices of buying organisations contribute directly to the
commercial pressures that make exploitation more likely. Persistent demands for
lower prices, shorter lead times and greater flexibility can leave suppliers
absorbing costs they cannot realistically sustain. Where labour represents one
of the few adjustable expenses, pressure is ultimately transferred to workers
through reduced wages, excessive hours or insecure employment.
Poor forecasting and volatile ordering create similar consequences.
Suppliers asked to accommodate sudden increases in demand may rely on temporary
agencies, excessive overtime, or unapproved subcontractors to expand capacity
rapidly. Conversely, abrupt order cancellations can leave factories unable to
maintain employment or pay workers properly. Ethical sourcing requires buyers
to consider how ordering behaviour affects labour conditions, particularly
where suppliers operate on narrow margins or are heavily dependent on a single
customer.
Payment practices also influence whether suppliers can maintain
responsible employment standards. Extended payment terms, disputed invoices and
late payments create cash-flow pressures that travel through successive supply
chain tiers. Smaller subcontractors may respond by delaying wages or relying on
informal labour arrangements. Buyers seeking responsible supply chains should
recognise prompt, predictable payment as part of ethical procurement rather
than treating payment terms solely as a working-capital lever.
Commercial negotiations should consider whether requested savings can
genuinely be achieved through productivity or process improvement. Where a
buyer demands substantial reductions without understanding the supplier’s
underlying cost structure, savings may instead be extracted from wages or
staffing levels; a supplier quoting below the National Living Wage benchmark of
£12.71 an hour for UK-based labour, once National Insurance and holiday pay are
added, is very likely cutting corners somewhere in its workforce.
Responsible purchasing does not require organisations to abandon
competition or accept inefficient costs. It requires commercial discipline
applied with an understanding of consequences. Realistic lead times, accurate
forecasting, fair payment and constructive supplier relationships can support
both value for money and acceptable labour conditions. Ethical sourcing
therefore begins partly with the buyer: organisations cannot credibly demand
responsible suppliers while maintaining purchasing practices that make
responsible behaviour progressively harder to sustain.
Responding to Suspected Forced or Child Labour
Suspected forced or child labour requires an immediate but controlled
response. Procurement teams should escalate credible concerns through
established safeguarding, legal, compliance and senior management channels
rather than confronting individuals without preparation. The priority is
protecting potentially affected workers while preserving evidence and
establishing reliable facts. Allegations should be documented carefully,
confidentiality maintained where appropriate, and specialist expertise obtained
where intervention could expose workers to retaliation or further exploitation.
Investigation should establish the nature, scale and severity of
suspected abuse using evidence from multiple sources, including worker
testimony, employment records, recruitment arrangements, wage documentation and
age verification. Independent investigators or appropriate local organisations
may be required where internal teams lack expertise or access. Supplier
management should not control the investigation, as this could compromise
evidence, intimidate workers, or prevent an accurate understanding of actual
conditions.
Immediate termination may appear decisive, but abruptly withdrawing
business can worsen the position of affected workers. Children removed from
employment without appropriate support may move into more dangerous work, while
migrant workers carrying recruitment debt could lose income, accommodation or
immigration security. Responses should first focus on preventing harm and
protecting individuals; remediation may include repayment of recruitment fees,
the safe withdrawal of children from work, and access to appropriate education
and support.
Serious cases may also require notification to competent authorities,
depending on jurisdiction, circumstances and applicable legal obligations. In
the UK, this can include referral into the National Referral Mechanism, which
processed a record 19,125 potential victims in 2024 alone. Procurement should
maintain a clear audit trail documenting allegations, evidence, decisions and
subsequent monitoring, since continued business should depend on the supplier’s
willingness and ability to remediate harm and prevent recurrence.
Remediation Versus Supplier Termination
Discovering human rights abuse creates a difficult decision between
supporting remediation and ending the commercial relationship. Immediate
termination may protect the buyer from further association with an abusive
supplier, but it does not necessarily protect affected workers. Lost orders can
result in unemployment, unpaid wages, or greater vulnerability, particularly
among workers who are migrants and indebted through recruitment fees. The
appropriate response should consider the severity of harm, the supplier's
conduct, and the consequences for affected people.
Remediation is generally more appropriate where the supplier
acknowledges the problem, cooperates transparently and demonstrates credible
capacity to correct it. Actions may include reimbursing recruitment fees,
restoring withheld wages, reducing excessive hours or ensuring children are
safely removed from inappropriate work and supported into education. Corrective
action plans should establish responsibilities, deadlines and independent
verification, with continued purchasing providing leverage for improvement only
where progress is measurable and workers genuinely benefit.
Termination becomes more appropriate where exploitation is deliberate,
severe, or systemic; where suppliers conceal evidence, refuse access, or
repeatedly fail to implement corrective actions. Procurement teams should
establish escalation criteria in advance so decisions remain consistent rather
than reactive. Responsible disengagement may require notice, worker protection
measures, and cooperation with relevant specialists, since the objective is
neither to preserve supplier relationships nor to achieve symbolic zero
tolerance, but to achieve the strongest practicable human rights outcome.
Measuring Ethical Sourcing Performance
Ethical sourcing performance should be measured using indicators that
demonstrate whether human rights risks are being identified and reduced, rather
than simply whether compliance activities have been completed. Useful measures
include the proportion of high-risk suppliers assessed, the percentage of
priority supply chains mapped beyond Tier 1, the number of significant findings
identified, and the number of corrective actions completed within agreed
timescales. These measures provide far greater insight than counting policies
or audits without considering what they actually achieved.
Supplier-level indicators should combine preventative and outcome-based
measures. Procurement teams might monitor recruitment fees identified and
reimbursed, excessive working-hour findings, wage violations, unresolved
grievances and repeated audit failures. Worker-related evidence is particularly
important because improvements in documentation do not necessarily mean
improvements in working conditions. Data should incorporate worker feedback and
grievance resolution, distinguishing procedural compliance from meaningful
changes that people in the supply chain actually experience.
Performance measures should also examine the buyer’s own behaviour.
Indicators covering payment performance, forecasting accuracy, order changes
and lead-time expectations can reveal whether commercial decisions are
supporting or undermining responsible labour conditions. Category managers
should understand whether persistent cost reductions or volatile demand are
creating pressure further upstream, reinforcing shared accountability rather
than assuming human rights risk originates exclusively with suppliers.
Reporting should ultimately support intervention rather than become an
exercise in producing increasingly sophisticated dashboards. Senior management
needs visibility of significant risks, overdue corrective actions, recurring
supplier failures and areas where transparency remains inadequate. The
strongest measurement frameworks combine quantitative indicators with
qualitative evidence, recognising that ethical sourcing success is demonstrated
by reduced harm and improved worker outcomes rather than perfect compliance
statistics alone.
Developing a Risk-Based Ethical Sourcing Framework
A risk-based ethical sourcing framework enables organisations to
concentrate resources where potential harm to people is greatest. Rather than
applying identical due diligence requirements to every supplier, procurement
teams should assess exposure by sourcing country, sector, commodity, workforce
vulnerability, and subcontracting complexity. Severity should receive
particular attention because relatively low expenditure can still pose
substantial human rights risks, so the framework should prioritise potential
impact on workers rather than procurement value alone.
The first stage is establishing a consistent risk-screening methodology
across relevant categories and suppliers. Procurement teams can combine
internal supplier information with credible country, sector and commodity risk
indicators, such as Walk Free’s Global Slavery Index rankings, to establish
preliminary classifications of low, medium and high risk. Additional factors
might include migrant labour, seasonal employment, and limited supply chain
visibility, with classifications automatically determining subsequent
due-diligence requirements.
Different risk levels should correspond with clearly defined assurance
measures. Lower-risk suppliers may require standard contractual provisions and
periodic declarations, while medium-risk relationships could involve enhanced
questionnaires and additional contract management. High-risk suppliers may
require deep-tier mapping, worker engagement, independent audits and formal
improvement plans. Establishing these requirements in advance creates
consistency while allowing professional judgement where particular
circumstances justify greater scrutiny.
The framework should also define escalation, remediation and
disengagement procedures. Warning signs need predetermined routes for
investigation, with responsibilities allocated across procurement, legal,
compliance and senior management functions. Serious findings should trigger
proportionate corrective actions and increased monitoring, while deliberate
concealment may justify suspension or termination. Decisions should consider
consequences for affected workers, ensuring commercial responses seek to remedy
harm rather than merely distance the buying organisation from reputational
exposure.
Risk assessment must remain dynamic because supply chains and operating
environments continually change. Suppliers can relocate production, appoint new
subcontractors or begin sourcing from different regions, while political
instability and economic disruption create new vulnerabilities. Higher-risk
relationships should be reassessed periodically and whenever significant
changes occur. A mature framework combines initial screening, continuous
monitoring and documented escalation, turning ethical sourcing from an
occasional compliance exercise into systematic procurement governance.
Can Forced and Child Labour Really Be Eliminated?
Eliminating forced and child labour from global supply chains remains an
extraordinarily difficult objective. Exploitation is connected to poverty,
migration, conflict, weak governance and unequal bargaining power, much of
which sits beyond the direct control of any procurement organisation. Complex
supply networks also mean that abuses can migrate between suppliers or
disappear further upstream as scrutiny increases, so no organisation can
credibly guarantee that every worker across every tier is permanently
protected.
That does not make elimination an unrealistic ambition. Organisations
can substantially reduce the conditions that allow exploitation to remain
hidden by improving supply chain visibility, strengthening due diligence and
responding effectively when problems emerge. Responsible purchasing practices
can remove commercial pressures that contribute to poor labour conditions. At
the same time, collaboration between buyers, suppliers, governments, trade
unions and civil society can address systemic problems no single organisation
can resolve independently.
The meaningful test is therefore not whether an organisation can claim a
completely abuse-free supply chain, but whether it can demonstrate credible
efforts to find, prevent and remedy exploitation wherever significant risk
exists. Organisations that investigate deeply may initially uncover more
problems than those conducting superficial checks, which can indicate stronger
governance rather than poorer performance. Progress ultimately requires
sustained transparency and measurable change, replacing reassuring declarations
of zero tolerance with genuine evidence.
Summary - Best Practice Recommendations
Effective ethical sourcing begins with recognising that human rights
risk rarely stops with the contracted supplier. With 50 million people
estimated to be living in modern slavery worldwide, organisations should
identify where their greatest exposure exists by considering countries,
sectors, commodities and workforce characteristics. Procurement teams should
then map priority supply chains beyond Tier 1, concentrating resources where
potential harm is most severe rather than applying identical scrutiny to every
supplier, regardless of underlying exposure.
Due diligence should test evidence rather than depend on supplier
assurances. Pre-qualification questionnaires, policies, and codes of conduct
provide useful starting points, but they cannot independently demonstrate
working conditions, as Leicester’s garment sector and countless other cases
have shown. Higher-risk relationships require stronger verification through
employment records, worker engagement, independent audits and external
intelligence, comparing evidence from different sources so that apparently
satisfactory documentation does not mask exploitation concealed within deeper
supply chain tiers.
Human rights expectations should be embedded throughout procurement
rather than added once contracts have already been awarded. Specifications,
evaluation criteria, supplier codes, contractual obligations and key
performance indicators should reinforce appropriate labour standards, with
suppliers understanding requirements before bidding. Clear escalation and
remediation provisions matter equally, enabling procurement teams to respond
consistently when concerns arise rather than improvising decisions after
serious allegations have already emerged.
Organisations must also examine their own purchasing behaviour.
Continual price reductions, unrealistic lead times, inaccurate forecasts and
delayed payments create pressures that travel through supply chains and
ultimately affect workers. With the ILO estimating £185 billion in annual
illegal profits from forced labour worldwide, procurement professionals should
ensure commercial requirements are genuinely compatible with the labour
standards expected from suppliers, pursuing value for money through sustainable
efficiencies rather than practices that make exploitation more economically
attractive.
When problems are identified, protecting affected workers should remain central to decision-making. Remediation can often yield better human outcomes than immediate supplier termination, particularly when suppliers acknowledge their failures and cooperate with corrective measures. Serious, deliberate, or repeated exploitation may nevertheless require responsible disengagement, with decisions that are documented, proportionate, and supported by appropriate expertise. Success should be measured by reduced harm, effective grievance resolution, and demonstrable improvements in working conditions, rather than by activity statistics.
No procurement system can guarantee that exploitation will never occur within a complex global supply chain costing UK society alone an estimated £3.3–4.3 billion each year. Strong ethical sourcing instead creates the capability to identify risk earlier, uncover problems that might otherwise remain hidden, and respond effectively when harm occurs. Transparency, worker voice, technology and professional judgement all contribute to that capability, in pursuit of a supply chain where commercial value is never achieved by treating vulnerable workers as an invisible cost of doing business.
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