Once a prisoner has served the time, the right to vote comes back.

Political prisoners usually served three- to five-year terms or longer.

In California, prisoners typically serve half their sentences, with time off for good behavior.

The difference is about one week per year for every federal prisoner serving a term of more than a year's duration.

Some prisoners are serving Life sentences and may not ever be released.

Thus, prisoners who demonstrate good behavior only serve about 87.1% of their total sentences.

This leaves the problem of where and under what conditions prisoners would serve their sentences.

The prisoner must serve at least 25 years in order to be eligible for parole.

The prisoners released had all served at least two-thirds of their sentences.

It also releases prisoners serving time for personal possession of drugs.