They will try to place offenders in the lowest security area when possible because they believe that if a system is more institutionalized it makes it harder for the offender to successfully return to the community. Therefore, someone will proceed towards release starting from high security prisons, then moving to a lower security prison, then through a halfway house, and eventually released into the community.[12] There are three levels to Prison High security Level (closed prisons), Lower Security Level (open prisons) and Transitional Housing.[13] Closed prisons have walls, fences around the compound, inmates are locked in, and under control of corrections officers.