Being a cop isn’t just about donuts and coffee, you know, as there is plenty of bad guys out there to catch. Well, some of these baddies are armed and dangerous, and it could result in serious injury or even death. Well, cue the e-Glove which can be worn discreetly, and is able to detect hidden knives during a pat down session. Whenever it detects any metal on a person, the glove will vibrate silently to give a warning. It retails for around $153 per glove, and is currently on trial at Leicestershire’s Police Station in the UK, with plans to roll it out among the rest of the bobbies all over the UK.