Wyo. Const. art. 7, § 20: Duty of legislature to protect and promote health and morality of people.

As the health and morality of the people are essential to their well-being, and to the peace and permanence of the state, it shall be the duty of the legislature to protect and promote these vital interests by such measures for the encouragement of temperance and virtue, and such restrictions upon vice and immorality of every sort, as are deemed necessary to the public welfare.