Colorado Revised Statutes Title 31. Government Municipal § 31-10-1522. Employer's unlawful acts

(a) To refuse any of his employees the privilege of taking time off to vote as provided in section 31-10-603; or

(b) To influence the vote of any employee by force, violence, or restraint, or by inflicting or threatening to inflict any injury, damage, harm, or loss, or by discharging from employment, or by promoting in employment; or

(c) To enclose, in paying his employees the salary or wages due them, their pay in pay envelopes upon which there are written or printed any political mottoes, devices, or arguments containing threats, expressed or implied, intended or calculated to control the political opinions, views, or actions of such employees; or

(d) To put up or otherwise exhibit, within ninety days prior to any municipal election, in his factory, workshop, mine, mill, office, or other establishment or place where his employees may be working or be present in the course of such employment any handbill, notice, or placard containing any threat, notice, or information that, in case any particular candidate is elected or issue is carried, work in his place or establishment will cease in whole or in part or the wages of his employees be reduced or containing any other threats, expressed or implied, intended or calculated to control the political opinions or actions of his employees; or

(e) To either expressly or by implication threaten, intimidate, influence, induce, or compel any employee to vote or refrain from voting for any particular person or issue in any municipal election or to refrain from voting at any municipal election.