It shall be unlawful for any person to have in his or her possession any firearm while the person is under the influence of a controlled substance, as defined in C.R.S. § 18-18-102(5), or of intoxicating liquor. (Code 1979, § 27-119; Ord. No. 2014-16, § 1, 6-2-2014; Ord. No. 2003-56, § 2, 9-8-2003)