Maine and Vermont allow prison inmates as well as probationers and parolees to vote. Another 71,000 probationers and parolees are under its supervision. One contributing factor for prison overcrowding is parolees who reoffend by violating their parole supervision. An LAPD veteran is assigned with supervising four parolees who help him solve crimes. Other parolees were sent as paid workers to railway gangs and mines. These officers also monitor and supervise parolees who are released back into the general public. He was released to a Chicago mission that aides parolees with rehabilitation. Many parolees went to the custody of local farmers. Even as parolees, they were still required to report regularly to the police authorities. The Camp Jackson parolees were exchanged for a portion of Mulligan's command.