"French documentary reveals a handwritten letter found in a pregnancy test bought in Paris, alleging the presence of Chinese prisoners behind peaceful lives. Former prisoner and activist, Peter Humphrey, suggests the note aims to expose prison labor. Companies urged to ensure supply chains are free from human rights abuses. Regatta, the coat manufacturer mentioned in the documentary, denies involvement in prison labor, stating the note was an isolated incident involving a former employee. #HumanRights #PrisonLabor #SupplyChain"