Bar Downs
Bars are invariably down because they are robbed from in the bond. As soon as it is opened on the aircraft we become liable for discrepancies despite the fact we would all have to be illiterate vegetables to lose so much on these bonds so the deductions continue.
However, if you make your airline aware of this and they contiue to deduct without due investigation, then they are liable to prosecution for the act of theft from the crown. People that defraud the crown go to prison. Its called knowingly allowing a criminal act to occur.
If you have any doubts, don't sign anything and if you have any suspicions being the good law abiding citizens you are report it to the customs and excise service or police. They love nothing than to give some bone idle overpaid management types the squeeze.
If you want to do it more quietly, ask them if they are going to accuse you of something anmd to wait whilst you get your solicitor! that will shut the theiving bastards up and make them think twice. Play them at their own game!