To improve the management and risk reduction, it is essential to understand the evolution of the consumption of psychoactive substances, medicated or not in detention; it does not have at present no data on this subject. This work has as main objective to evaluate the development of substance use terms (goods and consumption practices) by the inmates between the period preceding their incarceration and their fifth month in detention.

Inclusion Criteria:

• Major subject
• Subject in the fourth or fifth month of incarceration
• Held about agreeing to participate in the study

Exclusion Criteria:

• Patient refusing to participate
• Patient unable to respond to the questionnaire (major difficulties understanding of the French language)

The eligible study population is incarcerated major subjects. The topics will be selected subjects incarcerated in remand centers participating in the study. All subjects were medical examination, Home Maintenance arriving at their entrance into custody. On this occasion, the medical staff will verify the absence of non inclusion criterion and the subject will be informed orally and via an information sheet that will retain an invitation to respond to an anonymous questionnaire will be sent after him 4 or 5 months of detention (as prisons). He may accept or reject this invitation.