Every law has a loophole

Proverbial Meaning: If you are arrested for a crime there is always a legal way of getting away with it.

Literal Origins: A “loophole” is a hole in a wall that one can shoot at attacking enemies through, it is also a source of air and light.

Common Usage: The phrase is not often quoted ‘as is’, but the term “loophole” is regularly used in connection with the law and getting away with crimes, especially in connection with high profile criminals or rich people with very expensive lawyers.