Résumé·s
Objectives: The objective of the present study is to describe the patterns of health service use and
of prescription claims in the year preceding an offense leading to a verdict of non-criminal responsibility on account of a mental disorder (NCRMD). Methods: Provincial health administrative
databases were used to identify medical services, hospitalisations, and ambulatory prescription
claims among 1,014 individuals found NCRMD in Québec. Contacts in the year preceding the
offense were analyzed using descriptive analyses and latent class analysis. Results: Overall, 71.4%
of subjects were in contact with services for mental health reasons within a year of their NCRMD
offense. Among those that received services and who were not hospitalised for psychiatric reasons
at the time of the offense, 20.7% committed the NCRMD offense within a week of the most recent
mental health contact. Among those that had at least one prescription claim for an antipsychotic,
45.8% were not taking any antipsychotic at the time of the offense. Latent class analysis provided
a multidimensional representation of mental health service use and showed that 58.4% of subjects
had had no or very rare contact with services. Conclusions: Many forensic patients are likely to
have experienced service disruption or discontinuity while in the community, for reasons that may
relate to perceived need for care, to service organization, or to the acceptability, availability, and
accessibility of services. Given the serious impact of the “forensic” label on the lives of service
users, not to mention the increased pressure on resources, the considerable economic costs, and
the impact on victims, there is reason to advocate for a greater involvement of mental and physical
health service providers in early prevention of violence, which requires reorganizing resources to
share the forensic knowledge upstream, before an offense is committed.