The Law:

Felons in prison or on parole cannot vote. State officials have interpreted this prohibition to include people who have committed a misdemeanor and who have been sent to prison. Once an individual has completed his or her sentence, the right to vote is automatically restored. Individuals on probation may vote.

Getting Your Vote Back:

http://www.sentencingproject.org/pdfs/rights-restoration/Colorado.pdf

More Information:

American Civil Liberties Union of Colorado
http://aclu-co.org/docket/200505/200505_description.htm

Colorado Voting Project of the Colorado Criminal Justice Reform Coalition
http://www.ccjrc.org