For some crimes the tolerance level is pretty much zero. Given the considerable resource AI needs that doesn't seem impossible to clamp down on some things.
Seems hard to think of types of crime for which that's actually true. In the US, at least, it's certainly not true of murder, rape, or other violent crimes. We tolerate quite a lot of that, at least to the extent of never arresting, charging, and convicting anyone.
And it is most definitely not true of non-violent "white collar" financial crime.