How to Solve a Crippling Crime Problem

If it seems like the policeless Libertarian utopia you've installed seems to be having trouble dealing with a major crime problem, I have just the solution for you! The definition of a crime is "an action or omission that constitutes an offense that may be prosecuted by the state and is punishable by law." Therefore, if we legalize the act, no criminal offense is committed, and the state has to do nothing!

Tl;dr: It's not a crime if you legalize it.