Colo. Const. art. XVII, § 5
No person having conscientious scruples against bearing arms shall be compelled to do militia duty in time of peace.
Source: Entire article added, effective August 1, 1876, see L. 1877, p. 73. L. 2006: Entire section amended, p. 2955, effective upon proclamation of the Governor, L. 2007, p. 2964, December 31, 2006.