Boot camp programs, frequently called "shock incarceration" programs, appeared in the early eighties as an alternative to traditional correctional programs. Offenders in these programs spend a relatively short period of time in a quasi-military program involving physical training, drill, manual labor, and strict discipline. Since 1983, 49 boot camp prisons have been opened in 33 State correctional jurisdictions, in addition to many programs developed and being considered in cities and counties, and for juveniles. The past decade has witnessed considerable interest in the concept of boot camps as a potentially effective intermediate sanction for certain types of Offenders. The research findings indicate that boot camps may be a useful alternative sanction to keep first offenders from offending again over the short terms, but that the long-term effects on recidivism or reduction of cost and prison crowding have not yet been determined. There is growing evidence that cost savings can be achieved if boot camps are used as an alternative to confinement. Because shock incarceration programs confine offenders for relatively short periods (3-6months), they may not be able to prepare the participants fully for readjustment to the community. More follow-up for participants in terms of aftercare services - employment assistance, drug treatment, etc - may, therefore, be an essential aspect of successful programs. Although boot camp programs are expected to remain popular for now, it is not known if growth can be sustained. Among the factors affecting such growth are political and popular interest, success in achieving program goals, and legal issues associated with the selection of program participants.