Roy,
Don`t think they are concerned with a detection. Went through Manch last week. One of the CC stopped, had forgotten to put a roll on deodourant in a plastic bag with other stuff. (Hands up and apologised). But then she wasn`t allowed to put it in the plastic bag with her other stuff in the security area. She would have to leave the area and then come back once it was done.
So if she had have been carry something to endanger us she could have then got rid of it outside the security area.
Then when she came back through she was subjected to a test of the contents of the plastic back with their new testing kit. Not a very scientific way of testing especially when the security guard knocks the testing strip upside down onto a table during the test.
