Mental Illness, Violence, and Police Interactions: An Overview

Matthew Capodicasa’s play The Scenarios focuses on the actors taking part in crisis de-escalation trainings for police officers engaging with people with a mental health diagnosis.

Here is some background on the incidents of violence against and at the hands of people with a mental health diagnosis. All statistics are linked to sources. For Matthew’s insights from working as a part-time administrator for an organization that offered these trainings, take a look at his conversation with Studio Literary Director Adrien-Alice Hansel. You can also read more about these de-escalation trainings.

If you or someone you love is in crisis, please call 988 to be connected to local mental health professionals.

Mental Health Diagnosis and Violence

According to the National Alliance on Mental Illness, 21% of U.S. adults, or 52.9 million people, experienced mental illness in 2020.

People with a mental health diagnosis are 8-10 times more likely to be a victim of violence than the rest of the population.

People with mental illnesses are more likely to cause self-harm than to inflict harm on others.

People with a mental health diagnosis are “modestly” more likely than the rest of the population to commit an act of violence (2.9% of persons w a mental health diagnosis vs .8% of the rest of the population, per a 2012 APA study, in a correlation that the study characterizes as “modest”).

Roughly 5% of all crimes are committed by people with a mental health diagnosis.

Police and People in Mental Health Crisis

Police are usually the first to respond to someone in a mental health and/or substance abuse crisis. Between 21-38% of 911 calls are related to mental health or substance use; between 11-20% of all police contacts with the public involve persons with serious mental illness.

People with mental illness are 11.6 times as likely to experience use of force in interactions with law enforcement than those without mental illness.

Washington DC requires police officers to take a 16-hour ICAT training in addition to the 40-hour CIT training they receive as a part of basic training.

A Great Resource on Reimagining Mental Health Care

NAMI held a virtual seminar called “More than a Number: The Impact of 988 on Reimagining Mental Health Crisis Care.”

It follows the fight to implement a 988 crisis hotline that will divert 911 calls to trained mental and behavioral health professionals. It tells the story about how many people died of heart attacks and in fires before the country established—and funded—911 services around the country, drawing inspiration from that story to reimagine how communities could offer mental health crisis care.