Convicting people for criminal behaviour based on a subjective definition of it, is what we already do wrong. Way too many innocent people end up being punished

Convicting people for criminal behaviour based on a subjective definition of it, is what we already do wrong. Way too many innocent people end up being punished or killed, which I expect to be (objectively) a criminal act in itself. So, I thought we better first have a tool that solves that, instead of a tool that amplifies it.