The rocker board trap is a live trap used in trap hunting to catch various predatory game. The seesaw board trap belongs to the box tra ps and is triggered when the game inside the trap steps on the seesaw board fixed there. The flaps at the entrances of the trap then slam shut and the interlock attached to them ensures that the game cannot push them open again from the inside and thus has finally fallen alive. If weasels are not allowed to be caught, a loophole must be provided.