Alessandro Stella is Research Director at CNRS and Professor at EHESS, France. Having studied workers’ revolts, slavery and interbreeding, gender relations and sexuality, in recent years he has devoted himself to research in the field of drugs. Anne Coppel is an activist in drug law reform and human rights. Now retired, she was formerly President of the Association Francaise de Reduction des Risques (AFR), and a public health sociologist with a focus on drug policy, HIV/AIDS and sex workers.