How to detect HIDDEN CAMERA in trial rooms

Infront of the trial room take your mobile and make sure that mobile can make calls........



Then enter into the trail room, take your mobile and make a call.....If u can't make a call......!!!!There is a hidden camera......This is due to the interference of fibre optic during the signal transfer......Plse share this to your friends to edue this issue to the public......To prevent our innocent sisters and ladies from HIDDEN CAMERA............FYI, Share as much if possible .....Pass to as many as you can... someone will make use of it