The goal of this clinical trial is to learn the effect, or lack thereof, of the Crisis Intervention Team (CIT) training among police officers. The main questions it aims to answer are:

• Whether the 40-hour CIT training improves police officers' verbal crisis de-escalation skills / non-verbal physical behavior
• Whether police officers with and without CIT training use different procedural justice and make different disposition-related decisions

Participants will:

• Receive or not receive CIT training depending on whether they are randomized to the intervention group or the control group.
• Participate in three assessments: baseline before the randomization, 3-months post-randomization, and 6-month post-randomization.

Researchers will compare police officers who were randomized to the control group with police officers who were randomized to the intervention group to see if receiving the CIT training make differences on the outcome measurements.

Individuals with serious mental illnesses (SMI), as well as those experiencing suicidality or psychiatric crisis encounter police officers frequently in the community. Almost a third of people with SMI have police involved in their pathway to mental health care. Although a variety of strategies to reduce law enforcement involvement in mental health crisis response are emerging, people with SMI and/or those in crisis will continue to encounter police when officers must serve as first responders, and importantly, during officers' routine patrol duties. As such, officers need training to safely and effectively interact in these situations. The Crisis Intervention Team (CIT) model is a collaborative approach that includes a 40-hour training of officers. CIT has been implemented in thousands of U.S. communities, and some agencies are now mandating all of their officers complete CIT training. Despite widespread support and growing research, a randomized, controlled trial (RCT) has never been conducted to assess the effectiveness of CIT training on officers' actual skills and behaviors. Prior research has relied on officers' self-report of their de-escalation skills and has not directly measured actual performance in a rigorous, standardized, controlled fashion. Furthermore, multi-site studies are lacking, and potential officer-level factors that may moderate CIT training outcomes have yet to be systematically assessed.

This study will partner with six sites across the country representing diverse geographic areas and constituency demographics. There are four Specific Aims of the study. First, the investigators will conduct a rigorous, multisite randomized controlled trial (RCT) of CIT mental health training. Each agency will provide 40 officers, for a total of 240. Among the 40 officers from each agency, half will be randomized to CIT training. Data will be collected using Standardized Scenarios, which will be rated centrally in a blinded fashion (blinded by site, study arm, and time). The primary outcome is actual verbal crisis de-escalation skills / non-verbal physical behavior. Second, the investigators will determine the impact of CIT training on two secondary outcomes: use of procedural justice and disposition-related decision-making.

Inclusion Criteria:

• 18 years or older
• English-speaking
• Has not yet taken part in CIT training
• Willing and able to be tested, randomized to CIT training or no training, and re-tested at 3-months and 6-months
• Employment as a police officer from participating site

Exclusion Criteria:

-

The investigators will blind the rater, who would code the video-recorded outcome behaviors.