Just strengthens the case against not selling alcohol in airports to certain passengers. Extend that to duty free as its clear this lot were illegally drinking thier own supply as they wouldn't have got that through security.
Yes it's discriminatory, but surely this flight, along with dozens of other examples of such behaviour on holiday resort bound flights show that it's simply a bad combination. No one has the absolute right to alcohol. And no one has the right to act this way on a plane. This association with binge drinking and flying needs to be harshly tackled in the UK. Sadly the profits of airport weatherspoons and World duty free trump all.
All of that aside. The plane should have diverted or had police on arrival. But what are any foreign police going to do with 70 odd pissed up UK youths? Maybe it should have simply returned to EDI and left them all at home and let local police deal with them.