Joh How about you wear a belt with a large metal buckle or a lot of metal decoration on the belt. When the detector is set off they will see your belt. After some day you can wear your CB and it would be no difference for them.
at first i thought "brilliant idea", so my compliments for this simple but very effective solution. but i see a problem. if she goes through the detector with the normal belt and it then activates, she can say that the belt has triggered it. but then she will probably be asked to take the belt off and go through it again. if it then makes a beep, this could be even more unpleasant for her than usual.
