Colo. Rev. Stat. § 8-2-104
It is unlawful for any person, company, corporation, society, association, or organization of any kind doing business in this state, by itself or its agents or attorneys, to induce, influence, persuade, or engage workmen to change from one place of employment to another in this state, or to bring workmen of any class or calling into this state to work in any of the departments of labor in this state, through or by means of false or deceptive representations, false advertising, or false pretenses concerning the kind and character of the work to be done, or amount and character of the compensation to be paid for such work, or the sanitary or other conditions of the employment, or as to the existence or nonexistence of a strike or lockout pending between employer and employees, or failure to state in any advertisement, proposal, or contract for the employment that there is a strike, lockout, or other labor trouble at the place of the proposed employment, when in fact such strike, lockout, or other labor trouble then actually exists at such place, and it is deemed false advertisement and misrepresentation for the purposes of sections 8-2-104 to 8-2-107.
C.R.S. § 8-2-104