Improving Overdose Prevention and Treatment in the Criminal Legal System
JCOIN supports researchers working in partnership with criminal legal system and behavioral health treatment professionals to build the evidence base for effective SUD service delivery, implementation, and dissemination. Each JCOIN study addresses a specific gap in the SUD care cascade, at one or more intercept points including jails, prisons, community corrections, problem-solving courts, and juvenile justice agencies. The studies evaluate the effectiveness and/or implementation of behavioral interventions, digital therapeutics, comprehensive patient-centered treatments, and medications for opioid use disorder (MOUD) in communities throughout the United States.
JCOIN research projects vary in size, complexity, and duration, from small pilot studies to large multisite clinical trials. JCOIN 1.0 projects were conducted between 2019-2025. JCOIN 2.0 studies were launched beginning in 2025.
Browse all projects, or use the filtering tools below for more information about JCOIN studies.

National Drug Court Survey (004)
Expanding the use of medications for addiction treatment (MAT) in specialty courts is a national priority of the Office of…
National Prison Survey (003)
This project is part of an administrative supplement that was provided to Chestnut Health Systems through the parent grant TRIALS…
National Jail Survey (002)
This administrative supplement was provided to Chestnut Health Systems through the parent grant TRIALS Coordinating Center to Reduce Substance Use,…
PDAPS Policy Datasets (001)
This study deployed a unique substance use-specific policy lab called the Drug Outcome Policy Evaluation (DOPE) to better understand the…
JCOIN Rapid Innovation Grant (J-RIG) Program
The JCOIN Rapid Innovation Grant (J-RIG) program is a rapid-funding mechanism to support small research grants to study newly emerging…
Connecting Critical Health Service Providers to Geospatial Data (JCOIN 210)
This MAARC activity aims to improve the delivery of geospatial and related data to address real-world needs of staff in…