What if you planted a bomb in a package on your doorstep with instructions on it telling people not to open it? What if the package thief stealing your package opens it and causes an explosion injuring themselves and maybe others?

You're describing a (digital) booby trap. Since you're knowingly targeting law enforcement officers, I'm not sure legal theory factors into whether you could get away with it in practice but even theoretically the answer is probably no, that's a computer crime.