The third briefing paper from IDPC is a response to the call of the European Commission for civil society organisations to express their views on the Commission's Green Paper on the Role of Civil Society in Drugs Policy in the European Union. The briefing paper summarise the opinion of IDPC members on a possible structure, selection criteria, responsibility of members, the key tasks and resources for a dialogue between the Commission and various community and professional organisations for the improvement of drug policy interventions in the EU.