These case studies illustrate the power of collaboration in helping to address opioid use disorder (OUD). Each case study shares the perspective of a different participant in a successful MAT partnership—a judge, a parole officer, and a social worker— and the factors that make their program successful, along with strategies for launching programs. Readers will walk away with tips on how stakeholder engagement, community education, and flexibility can help jails and courts work together to address the urgent issue of OUD.