Co-Response Jail Diversion

Working together for better lives and stronger communities.

About Our Co-Response jail diversion Model

The Model

Advocates operates pre-arrest Co-Response Programs in multiple police departments across Massachusetts. These programs are founded on the understanding that by working together, clinicians and law enforcement can respond most appropriately to the needs of individuals in the community who are in crisis.

Advocates' award-winning Co-Response model requires extensive collaboration between the clinician and the patrol division. Our clinicians train and work alongside police officers to help respond to crises and determine appropriate outcomes. Cross-training between the police and these embedded clinicians has resulted in mutual understanding and respect for each other’s roles.

Working in the field with Co-Response clinicians allows police officers the opportunity to deliver rapid mental health services to those they encounter. Police departments report that the number of re-occurring calls has decreased as people are referred to more appropriate services.

Arrest & Emergency Department Diversion

Co-Response clinicians can facilitate arrest diversions due to immediate presence on the scene. On average, 75% of individuals presenting with criminal behavior are diverted from arrest and into appropriate treatment. Individuals who are not able to be diverted (more serious crimes/mandatory arrests) also receive support, resources, and referrals from the clinician while in police custody.

Given that Co-Response clinicians are on the scene alongside police, they can provide rapid assessment and de-escalation. This allows for a reduction in costly and unnecessary transportation to hospital emergency departments for mental health assessment.   

Co-Response Training and Technical Assistance Center (CR-TTAC)

Launched in 2018, the Advocates Co-Response Training and Technical Assistance Center (CR-TTAC) is the first hub for the Co-Response Model in Massachusetts. The Center expands Advocates’ successful Co-Response model and offers a unique opportunity for police departments to receive evidence-based Mental Health First Aid trainings to better serve their community.  To learn more about how the CR-TTAC can assist in bringing a Co-Response program to your community please contact Kallie Montagano, Program Manager, at or (508) 661-9968.

View upcoming training opportunities.

Program History

Advocates launched the first Pre-Arrest Co-Response Program in Massachusetts in 2003 at the Framingham Police Department. The model was successfully replicated in Marlborough (2008), Watertown (2011),  Natick (2019), and offered on a regional basis in Hudson & Sudbury (2018), Franklin & Medway (2018), Westborough, Southborough, & Northborough (2019), Lowell (2021), Mansfield (2021), Stow & Harvard (2022), Belmont (2022), Shrewsbury (2022), Uxbridge, Blackstone, & Millville (2022), Northbridge & Douglas (2022), Grafton, Millbury, & Sutton (2022), Norfolk, Wrentham, & Plainville (2022), Sharon & Westwood (2022), Marshfield, Duxbury, & Norwell (2022). In 2018, the first Co-Response Training and Technical Assistance Center operating nationally was launched to expand replication efforts throughout Massachusetts.

Click here to view our Co-Response Jail Diversion newsletter archive.

Related News/Updates

Co-response mental health clinician joins Shrewsbury Police Department

The Shrewsbury Police Department responded to nearly 1,000 mental health calls between 2017 to 2021. That marked a 38% increase from the previous five year period, according to Chief Kevin Anderson.

Enter Jessica Atwood, who is the department’s new jail diversion program co-response clinician.