Increased rates of pretrial detention have driven overall growth in the jail population nationwide and carry significant individual and systemic impacts for people of color, who are disproportionately affected by pretrial policies. Targeting rates of failure to appear in court in local jurisdictions is key to reducing pretrial jail populations, especially because failure to appear can result in bench warrants and ultimately detention. This case study, part of a series highlighting work supported by the Safety and Justice Challenge Innovation Fund, examines the experiences of Tulsa County, Oklahoma, and Hennepin County, Minnesota, which implemented strategies to reduce rates of failure to appear in court and to reduce their respective jails’ pretrial populations.