Denounce
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
An act or thing is "denounced" when the law declares it a crime and prescribes a punishment for it.
State v. De Hart, 109 La. 570, 33 South. 605.
The word is also used (not technically but popularly) as the equivalent of "accuse" or "inform against."