Correctional facilities are institutions where individuals who have been convicted of crimes are held as punishment for their actions. These facilities may include prisons, jails, detention centers, and other types of correctional institutions. In addition to housing individuals who have been convicted of crimes, correctional facilities often provide rehabilitation and educational programs to help inmates reintegrate into society upon their release. Research in this area may focus on topics such as recidivism rates, the effectiveness of different types of rehabilitation programs, and the impact of incarceration on individuals and communities.