Should adultery laws come off the books in Colorado?A bill up for consideration in a Senate committee Tuesday would repeal all crimes for which marital status is an element. That would include adultery. The bill also repeals the crime of "promoting sexual immorality."Colorado is one of a handful of states that still makes adultery illegal, though adultery doesn't carry a criminal penalty. The immorality crime is a class 2 misdemeanor. An analysis prepared for legislators say adultery and immorality charges have been filed fewer than 20 times over the past three years. Read more about Senate Bill 244.