The Minnesota Department of Corrections did a study on criminals who are in prison to see if rehabilitation during incarceration correlates with recidivism and/or saved the state money. They used the Minnesota's Challenge Incarceration Program (CIP) which consisted of three phases. The first was a six-month institutional phase followed by two aftercare phases, each lasting at least six months, for a total of about eighteen months. The first phase was the “boot camp” phase. Here, inmates had daily schedules sixteen hours long where they participated in activities and showed discipline. Some activities in phase one included physical training, manual labor, skills training, drug therapy, and transition planning. The second and third phases were called “community phases.” In phase two the participants are on intensive supervised release (ISR). ISR includes being in contact with your supervisor on a daily basis, being a full-time employee, keeping curfew, passing random drug and alcohol tests, and doing community service while continuing to participate completely in the program. The final phase is phase three. During this phase one is still on ISR and has to remain in the community while maintaining a full-time job. They have to continue with community service and their participation in the program. Once phase three is complete participants have “graduated” CIP. They are then put on supervision until the end of their sentence. Inmates who drop out or fail to complete the program are sent back to prison to serve the rest of their sentence. Information was gathered through a quasi experimental design. This compared the recidivism rates of the CIP participants with a control group. The findings of the study have shown that the CIP program did not significantly reduce the chances of recidivism. However, CIP did increase the amount of time before rearrest. Moreover, CIP early release graduates lower the costs for the state by millions every year.