Ultraviolet Thief Detection Kit

Figure out who's stealing your sandwiches at work! For those of you who've been binge-watching my TV series Hacking the System, you'll remember one particularly awesome substance that we used twice on the show: once to figure out the secret code on someone's home alarm system and again to figure out who was messing with our computer. This clever substance is known as ultraviolet print powder, a super-fine dust that you can sprinkle on anything... the eyes won't detect it and the fingers won't feel it BUT when you wanna know who's been messing with your stuff?Under an ultraviolet light, bingo: it fluoresces and you've caught the thief right in the act. Indoors you can use this in powder form - just sprinkle it on, and it'll sit there until someone touches it.  And if you're outdoors where it's windy, you can mix it with some Vaseline to make a long-term fluorescing jelly!This ultraviolet powder and paste can be applied to locks, fire alarm boxes, off-limits door knobs, computer keyboar