Résumé·s
Objective: The number of police interventions with people presenting a mental health problem
has been increasing over the past 30 years and police services are becoming more aware of the
human resources and skills these interventions require. Our study addresses the characteristics
explaining police time used and outcomes of interventions as police officers interact with people
with mental illness.
Method: Using a police service administrative database from a large Canadian city, and an
identification algorithm method, police interventions with people with mental illness were
identified on 3 randomly selected days in the year. A content analysis of intervention logs was
carried out to identify characteristics of those interventions; the call initiator, the location, and
the final outcome of the intervention.
Results: Interventions with people with mental illness represent a small proportion (3%; n =
272) of all police interventions (n = 8485). General linear models show that the type of outcome
is the most important factor in estimating the time required by police interventions. Arrests and
hospitalizations are the least time-efficient outcomes, consuming 2.0 and 3.2 times, respectively,
more time than informal dispositions. A multiple correspondence analysis shows that police
interventions can be depicted in 2 dimensions, representing their main roles concerning people
with mental illness, namely, to ensure the public safety and to protect the most vulnerable
citizens. The more these services are required, the more police time will be required.
Conclusion: Education and partnerships between police services and mental health services
are essential to a proper management of outcomes.