Addictions, whether to a substance or a behavior, are often associated with violence, but their role is not well known. Despite the publication of numerous studies demonstrating the influence of addictions in acts of violence, the exploration of violence in the context of addiction remains very limited. In order to fill this gap, teams members of the Addictopôle Occitanie in collaboration with a regional team are preparing the launch of a concrete longitudinal study to analyze the incidence of violence in populations suffering from addiction, but also to evaluate the need in terms of management of this violence.

Hypotheses: To analyze the prevalence of violence in populations suffering from addiction and the need for treatment of such violence using a robust protocol based on an anonymous questionnaire to assess the violence experienced or committed by a patient, taking into account his/her environment. This study would allow us to better understand the effects of addictions on the severity and frequency of violence, but also to implement concrete and adapted solutions in order to limit it. This study could lead to the creation of a regional Observatory of Violence related to Addictions.

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Study visits will be conducted in the following chronological order:

i. Inclusion/End Visit (IEV): D0.Eligible patients will have been identified by the investigator, and will be recruited in the Addictology Department during their usual visit.

The inclusion visit is carried out by an investigating physician who will confirm the patient's eligibility and verify his or her ability to answer the questionnaire. It will take place in the care center. It is part of the usual care.

During this visit, the investigator will:

• Perform the usual management of the patient.
• Validate the inclusion and non-inclusion criteria.
• Issue the letter of information and non-opposition

ii. Self-questionnaire entry visit (Vfollow-up/end): from D0 to 18 months (part of the usual care). After inclusion, the subject has enough time (15-30 min) to fill in the questionnaire independently. If the subject asks for it, the doctor can give him an explanation or clarify the meaning of a question and let him answer it alone. After completing the questionnaire, the subject will have no further obligations in relation to the study.The patient will complete an electronic self-questionnaire independently.

Inclusion Criteria:

• Outpatient under care in an Addictology structure.
• Male or female patient over 18 years old.
• Outpatient able to express his/her non-opposition.

Exclusion Criteria:

Patient consulting for the first time. Patient under court protection, guardianship or curatorship. Severe psychiatric disorders that have not been stabilized: (schizophrenia, bipolar disorders, etc.).

Severe neurological disorders that are incompatible with reliable data collection.

Minor patients. Pregnant women, parturients. People in emergency situations, people unable to express their consent.

patients (stabilized out of crisis or under the influence of substances), men or women over 18 years of age who are able to understand the information letter and the questionnaire and to express their non-opposition. These patients must be under the care of an Addictology structure for addictive behavior, misuse of narcotics or for the consolidation of a sobriety