This report was prepared based on materials from the Reitox Academy ‘Drug law offences in the Western Balkan region: from definition to monitoring’ which took place on 2 and 3 April 2014, and was organised by the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) in the framework of IPA4 project ‘Preparation of IPA beneficiaries for their participation with the EMCDDA’ funded by the Instrument for Pre-Accession.