How Did The Trap work?
The trap was an ingenious solution in this case. The explosion would come from a 12-gauge shotgun tip. It was a blank of course. The trigger or the plate was connected to the door knob. You can move the box left and right. But, as soon as a person lifts the box, something happens.
In that case, the trigger plate will be removed and the firing pin will engage. The explosion is the next thing that is going to happen. Is this even a legal thing to make or it is something that can put you in jail?