Booby-Traps and Other Devices, and the protocol also prohibits boobytrapping e.g. the wounded or dead, medical equipment, food, and drink. History A type of booby trap was referred to in an 1839 news story in The Times. During the Vietnam War, motorcycles were rigged with explosives by the National Liberation Front and abandoned. U.S. soldiers would be tempted to ride the motorcycle and thus trigger the explosives. In addition, NLF soldiers would rig rubber band grenades and place them in huts that US soldiers would likely burn. Another popular booby trap was the "Grenade in a Can", a grenade with the safety pin removed in a container and a string attached, sometimes with the grenade's fuse mechanism modified to give a much shorter delay than the four to seven seconds typical with grenade fuses. The NLF soldiers primarily used these on doors and attached them to tripwires on jungle paths. The CIA and Green Berets countered by booby trapping the enemy's ammunition supplies, in an operation code-named "Project Eldest Son". The propellant in a rifle or machine-gun cartridge was replaced with high explosive. Upon being fired, the sabotaged round would destroy the gun and kill or injure the shooter. Mortar shells were similarly rigged to explode when dropped down the tube, instead of launching properly. This ammunition was then carefully re-packed to eliminate any evidence of tampering, and planted in enemy munitions dumps by covert insertion teams. A sabotaged round might also be planted in a rifle magazine or machine-gun belt and left on the body of a dead NLF soldier, in anticipation that the deceased's ammo would be picked up and used by his comrades. No more than one sabotaged round would be planted in any case, magazine, or belt of ammunition, to reduce the chances of the enemy finding it no matter how diligently they inspected their supplies. False rumors and forged documents were circulated to make it appear that the Communist Chinese were supplying the NLF with defective weapons and ammunition. Northern Ireland During the "Troubles" in Northern Ireland, booby trap bombs were often used by the Provisional Irish Republican Army (IRA) and the Irish National Liberation Army (INLA) to kill British Army soldiers and Royal Ulster Constabulary officers. A common method was attaching the bomb to a vehicle so that starting or driving it would detonate the explosive. According to the Sutton Index of Deaths, 180