Between 2017 and 2019, we visited 11 correctional facilities managed by the Florida Department of Corrections, the Los Angeles County Sheriff’s Department, and the Montgomery County Department of Correction and Rehabilitation to develop an understanding of the challenges and practices involved in managing correctional contraband. We conducted facility observations and semistructured interviews with staff and leadership. This brief summarizes lessons from the site visits and discusses the scope of contraband issues and contraband interdiction strategies employed by the correctional agencies.