Rehabilitation is composed of a number of different types of interventions, which are employed in varying degrees to provide purposeful activity for prisoners. They are to challenge offending behavior, provide basic education to tackle illiteracy and innumeracy and equip prisoners with life and work skills. The Prison Service in Kenya is charged with the task of rehabilitating inmates as they serve their sentences within the confines of the prison homes. The Prison service mandate is to contain offenders in safe custody, rehabilitate and reform them, facilitate the administration of justice, and promote prisoners' opportunities for social reintegration. It is hoped that the information obtained through the study may help come up with prison service policies for inmates and create rehabilitation programs relevant to the needs of individual inmates. This study was based on Psychoanalytic Theory. The study adopted a descriptive research design. The research was carried out in Kisumu Maximum prison, Kisumu County. The study uses a sample size of 25 respondents. The study concludes that inmate's rehabilitation is multi-faceted and a product of many programs, such as vocational skills training, educational programs, socio-psychological programs, and spiritual and agricultural programs, among other roles, since prisons are places of rehabilitation. The study recommends what may be adopted to enhance proper rehabilitation measures for incarcerated inmates among the offender population in Kenya. The study also proposes to institute some recommendations that would be important to the prison department, other security agencies, intelligence operatives, and other researchers in the domain of international security.