Colo. Rev. Stat. § 18-18-403 : CRIMINAL CODE — UNIFORM CONTROLLED SUBSTANCES ACT OF 2013 — OFFENSES AND PENALTIES —18-403 - Additional definition TEXT PDF As used in this part 4, unless the context otherwise requires: (1) "Sale" includes a barter, an exchange, or a gift, or an offer therefor, and each such transaction made by any person, whether as the principal, proprietor, agent, servant, or employee, with or without remuneration. C.R.S. § 18-18-403 L. 92: Entire article R&RE, p. 354, § 1, effective July 1. This section is similar to former § 18-18-103 as it existed prior to 1992.