Trespass After Forbidden: Simple Crime, Odd Name Trespass after forbidden is another way of describing criminal trespass in Oklahoma. And entering a property after being forbidden is a crime in Oklahoma. Those signs that say "do not enter" or "keep out" expressly forbid entry. You enter at your own risk. Here are some things you might want to know about those "do not enter" … [Read more...] about What is Trespass After Forbidden in Wagoner?