I have never been met on departure out of the UK. Only arrivals into the UK (and they vary from 100% to 0% according to the sunspot activity).
But then I have always complied with the PN… what might draw attention is a late filing of the GAR but IMHO, IME, they don’t care about departures from the UK.
The TA2000 thing is a mystery, and knowing “why” might hold the key to getting rid of the 12hr PN. AFAICS it is just the police hanging onto a job support scheme. Problem is, no use telling this to whoever reads the consultation. One would need to start at some political level above that.
It’s tricky because the GAR system is a fantastic thing, making every UK runway an international airport. If it was abolished it would really bugger us up. Well, French police have already done that from their end 
So probably not a great idea to say that each meet costs the taxpayer around £2000 (total cost of two officers including office and vehicle overheads).
It should really be just 2hrs.
Applying the rule of strict construction to the relevant criminal statutes in the jurisdictions which are parties to the CTA, one would search in vain for any requirement to provide passenger information or flight times in advance of an intra-CTA private GA flight.
It is often convenient to add this non-statutory information when giving notice of proposed flight(s) but for reasons of practicality and safety, it is at best a non-binding estimate of the commander’s intentions.
Peter wrote:
The TA2000 thing is a mystery, and knowing “why” might hold the key to getting rid of the 12h
It was a recommendation that the CTA GAR be abolished by the Red Tape challenge (seemingly so many years ago now). Apparently the answer from Special Branch was “we need to keep it so we can build up patterns of travel”, but if it’s only needed for that, then there’s no need for a 12 hour advance notice period – or even notification before the flight, so long as it’s notified within a reasonable time of the flight then surely it still serves its purpose to “build up patterns of travel”.
It’s the old regulatory ratchet at work again: once a regulation is in place it is almost impossible to get it relaxed or removed because civil servants are fearful of being blamed should something happen (even if it would have happened anyway) because they relaxed a rule.
