Using Phones At Checkpoint Is Wrong – Nigerian Military Chief Warns

“It is a security measure for when you are approaching a checkpoint, you don’t make phone calls because the tendency is that if you are making a phone call, you might be communicating with some bad guys or you may use that particular device to set up some certain devices. It is a general convention; it is not peculiar to Nigeria, it is everywhere. People who have travelled abroad know that you don’t make phone calls when approaching a checkpoint”