The eighth meeting of the Informal Drug Policy Dialogue series took place in Lisbon on January 21-22, 2011, a joint initiative of Transnational Institute (TNI) and Diogenis, Drug Policy Dialogue in South East Europe that has replaced the Andreas Papandreou Foundation (APF) in co-operation with the Portuguese Institute on Drugs and Drug Addiction (IDT).

Over 50 policy makers, practitioners, academics, and representatives from NGOs and governmental organisations attended the meeting, in order to discuss the Portuguese decriminalisation model, cannabis policy reform, and the agenda and global initiatives at the 54th Session of the Commission on Narcotic Drugs.