Just goes to show the differences in interpretation of the rules at different security checkpoints at the same airport. We go through the BAA crew security Southside at Concorde House. Pens allowed Northside but we are not to be trusted with them Southside. Absolute farce and proof, if ever it was needed, that those that apply the interpretation to the rules are doing their best to aid the terrorists by screwing up our jobs and the travel plans of our pax.