Metal detectors have used so many, and that's why these things are everywhere. To find the normal courses, they are in buildings such as shopping malls, airports and authorities. It's just one of those things you just ignore, but sometimes these things are a hassle if you're in a hurry and forget only that a metal key ring as the alarm goes off and the security dogs for you if you are a threat or not.

The use of metal detectors seem to be part of theStandard Operating Procedure, the security in these establishments as normal people have no choice but to live with him. Still, it's better safe than sorry.