Do LHL crews at LHR pass VP points with both their hold and hand/cabin baggage? If so, what's to stop you from removing liquids from your hold luggage and putting it in your cabin baggage once airside?
A very good point. This is something that may have been happening in our airline at LHR. The DfT response?:
if a cabin crew member is found to have by-passed the system in this manner, the responsible crew member ie the Captain, will have his ID permanently withdrawn.
Reasonable? Sensible? Legal? Should airline protest (it has simply rolled over)?
Discuss