Evaluation, through an anonymous questionnaire, of the perceptions and opinions of staff working in prisons and detention centers in Brittany regarding the consumption of illicit substances and harm reduction measures in prison environment. The secondary objective of the study will be to assess training needs and explore factors associated with better adherence to the implementation of harm reduction measures.

A first contact will be made by email with the heads of institutions, directors of Penitentiary Rentegration Services), and coordinating doctors of healthcare units to inform them about the study's objectives and procedures, and to request their institution's and service's participation.

If they agree to participate, volunteer key contacts will be identified in each institution to relay the information to the staff working in the institution and ensure the distribution of the questionnaire.

The study's responsible doctor will meet with one of the resident investigators for a preliminary informational meeting with the institution's director, the SPIP director, and the identified key staff members. The questionnaires will be handed to the key contacts at that time.

A "non-opposition" letter will be individually distributed with each anonymous questionnaire to provide further details about the study for which their participation is requested.

After answering, participants will be able to place the questionnaire in the provided envelope, and then into a sealed ballot box.

After the answering period, the investigator will go back to prisons and detention centers to collect the ballot boxes.

The data from each paper questionnaire will be transcribed by the residents onto an online platform using the Lime Survey® software.

The statistician of UBO (university of Brest) will have access to the data on Lime Survey® in order to perform the statistical analyses as described below.

The statistician will make a descriptive analysis of the results and the an analytical study will research factors associated with improved adherence to harm reduction mesures : profession exercised; seniority; harm reduction training; age

Inclusion Criteria:

• working person of remand center of Brest, Vannes, Rennes, Saint-Malo, Lorient and Saint-Brieuc, who has answered the questionnaire
• working person of detention center of Lorient and Rennes, who answered the questionnaire

Exclusion Criteria:

• person opposing participation in the study
• person under legal protection measure

Working person of remand center of Brest, Vannes, Rennes, Saint-Malo, Lorient and Saint-Brieuc, and detention center of Lorient and Rennes :

• healthcare staff, divided into 5 sectors : somatic, psychiatric, odontology, addictology, pharmacy)
• prison warders
• Reintegration support service (in french : Service pénitentiaire d'insertion et de probation)
• other prison staff

All collected data that underlie results in a publication

Data will be available beginning three years and ending fifteen years following the final study report completion

Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement