For some a minute is more than enough. But think for a time when a suspicious packet arrives and the bomb detection squad is miles away. Then you may find this handy! ELITE or Easy Livermore Inspection Test for Explosives is a handheld unit that can detect more than 30 different types of explosives. When you get to a suspicious packet just take out a swipe from the packet of ELITE and rub it onto the surface. Wait for a minute and if the color changes to then run for safety or throw the packet away…!