Look, I was just asked the question. It looks like nothing of my era but the Police are getting in a tizz in the North East. A Journo mate emailed me and asked me what the fark it is. I told him it looks odd to me but I'll ask the question of some people who might know.
You can also set it for short-burst tic-tac dispensing. Simply place the tube in your mouth, set the selector to '***' and squeeze the button (don't pull it, squeeze it). It helps if you go "gaaaarrrr' with your mouth wide open whilst you dispense as they can just drop out of the tube and get stuck in the front of your teeth.