For more information and great statistics about this population you may also consider visiting these sites .

https://www.aclu.org/billions-dollars-wasted-racially-biased-arrests

http://www.pewresearch.org/fact-tank/2013/09/06/incarceration-gap-between-whites-and-blacks-widens/

http://aspe.hhs.gov/hsp/prison2home02/haney.htm

qualifying for health care after being released from prison

http://kaiserhealthnews.org/news/inmates-leave-jail-retain-mental-health-care/