The SIP in New Hampshire is strictly voluntary, and candidates are carefully selected. The program is explained fully to inmates before they enter; if inmates do not want to to participate or do not complete the program, they simply serve their prison sentence. The main goal of New Hampshire's SIP is to reduce recidivism. Regimented activities help prisoners become physically fit and drug-free, and the program attempts to produce radical changes in daily living patterns. These changes give offenders an opportunity to evaluate and rethink their present course in life and establish more positive behavior. All activities in the SIP are geared toward developing inmates physically and mentally. A functional description of New Hampshire's SIP is included, findings of an inmate survey of shock incarceration are presented, and recidivism rates of shock incarceration inmates between October 1989 and October 1991 are analyzed. Data on inmate participants in the SIP are appended. Tables and figures