"Fault" is a concept that I believes always lies with the person who is actually committing the crime, but I think the general idea isn't outlandish.

Say I've got a problem of drunks leaving the bars at night and pissing on the sidewalk. I can make it illegal, arrest anyone who does it, and when the complaints continue to roll in I can point out you can't make people not break the law. It is nobody's fault but their own, surely I cannot be responsible for another man's bladder.

Alternatively I can recognize the futile nature of attempting to correct this behavior with laws alone, and do something like install public toilets in problem areas.

Designing a society to accommodate people such that they are less likely to break the law does not mean that I am assuming responsibility for their actions, nor assigning fault to myself when people break the law.