The Council of Europe’s (CoE) Pompidou Group, Criminal Justice Platform (PGCJP), commissioned the Institute for Criminal Policy Research, based at King’s College London, to conduct a survey on the ‘quasi-compulsory’ treatment (QCT)1 of drug-dependent offenders. QCT refers to any form of drug treatment that is ordered, motivated or supervised by the criminal justice system. While most European countries have various QCT options enshrined within their laws2, it is not clear if there are any guidelines3 advising various professionals on the effective use of these measures. The aim of the survey was to provide an overview of existing guidelines on QCT disposals for adult drug-dependent offenders within 35 Member States of the Council of Europe.