Linda Montanari, health sociologist, is a principal scientist at European Monitoring Centre for Drugs and Drug Addiction (EMCDDA), where she arrived in 2000. Her work has been focusing on health and social problems and responses to the drug problem in the European countries, including on issues such as social exclusion, prison and more recently gender and drugs. She has been implementing the treatment demand indicator for more than 15 years, being responsible for the revision of the data collection protocol. Currently she is coordinating the drugs and prison monitoring, with the objective to improve the evidence on this issue in the European countries. The work aims at improving availability and comparability of the information on the drug problem among people in prison and on the drug related interventions in prison across EU countries. Standard monitoring tools for collecting information on drugs and prison, developed with the support of a European group of prison experts, include a European Questionnaire for conducting prison and drugs survey and a draft survey on prison interventions.