Already I know this is a bad idea.
Someone keeps stealing my friends packages that were left on their doorstep. They had the bright idea of rigging a smoke bomb or itching powder bomb or something nasty that would be triggered when the package was opened and leaving it on their doorstep to get back at the thief.
Not sure if they are going to do this, but I'd want to have solid legal advise I can give them to prevent them from doing this.
Yes opening someone else's mail is a federal crime, but what if the person is injured by this "bomb"- even if only mildly. How would that play out if they tried to press charges? Theyd have to admit to a federal crime OR maybe they lie and say they were confused (haha not sure how plausible that argument would be in court though).
Essentially I want a realistic worst case scenario I can provide them
EDIT: also very sorry if this is the wrong forum for this, I consider this question legal advise but apologize if I misunderstood the focus of this board