Drug Policy Evaluation

DrugPolicyEvaluation EU
With financial support from the
Drug Prevention and
Information Programme of
he European Union

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Here you can find four books concerning the activities carried out by the researchers of the project. Paul Griffiths, Scientific Director of EMCDDA, presented the books at the Final Conference of Lisbon


An active area for the EMCDDA (ELDD network of legal correspondents).
Extremely useful to have these kind of cross-country comparisons to understand of both the letter of the law but also how its actually applied. A wide group countries included with up-to-date information.


New data – but also a methodological reference source. New GDP estimates. Valuable information on estimating of the size of the drug market, a guide for both researchers and national accountants in the basic methodology of estimating the size of the illicit drug markets.

Recent trends in drug use challenge monitoring methodologies presently used at local, national and European level. New indicators are needed to evaluate the impact of policy and programmes, new models are necessary to mirror the various populations involved in use, abuse and dealing drugs and to estimate their size.

In the last two years an interdisciplinary research group, based in Italy, has conducted preliminary work to propose and apply models for estimating a pre-problematic population of drug users in Italy on the basis of administrative data. The research group, in contact with international experts and partners, has also studied the drug phenomenon from a supply side perspective.

Specific areas of interest of the research group, that will be considered more in depth in various EU countries, are the evaluation of the impact of drug market revenues on GDPs and the study of Criminal Organizations that control drug traffic and poly drug dealing at street level. Indicators based on these studies will be used to evaluate the enforcement activities in the various countries as well as the activities devoted to treatment and rehabilitation of problematic drug users.

Specific activities are also foreseen to introduce new indicators based on incidence of use (non problematic) to evaluate prevention programmes. The existing guidelines of the EMCDDA on incidence estimation and other recent work on this issue are oriented towards the estimation of incidence of opiates use (mainly heroin) based on latency and other parameter distribution estimated from therapy data. New models should and can be adapted, developed or generalized to estimate incidence of different population of drug users (cannabis non problematic, cocaine…) that constitute the biggest and ever increasing groups in need of secondary prevention.

From a supply side perspective an in depth analysis of the supply chain and of the organizations ruling it is needed to produce suitable indicators for evaluating supply reduction interventions. Some preliminary work has been already done by the research team. Further work is needed to produce efficient toolsfor evalaution .

An important contribution to facilitate the acquisition of information from supply side can come from the partnership between the Italian Criminal Police and the University of Rome Tor Vergata (attached to file ZD4_2010_AG.pdf) which started at the end of the nineties on wiretapping and developed for the last 10 years in the framework of 3 EU projects S.M.A.R.T. 1, 2 (JAI/2002/OIS/035) and 3, all coordinated by the Italian National Police with various partners among which the Spanish and the Belgian Police.