updated over 6 years ago by Hongli Cao
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SEDEX is a web-based database where suppliers post labour standards information and self-assessments in addition to all site audit reports.
Right answer, but more appropriate justification:
"We internally review our supply chain to evaluate human trafficking risks and slavery risks via detailed supplier questionnaires and supplier audits which review all aspects of the supply chain including safety, human trafficking, child labour and other legal requirements."