But either way, there are obvious risks in this type of law enforcement. The vast, vast majority of humans are capable of committing crimes. This is why thought-crimes are so dangerous when they start being enforced because everyone is guilty. People flirt with the idea of crime but that capability is rarely utilized. The line one has to cross to commit a crime is high for most people, but there is a significant portion of the population where it is much smaller (poor people or people with lesser intelligence).
LE is overly consumed with making their careers on the back of latter portion of the population to the point where they covertly push them hard to commit crimes. While the intelligent criminals conducting sophisticated plots usually get away with it because noone wants to do the legwork involved.
(deleted my other comment which was not-HN quality).