Swigging from bottles of vodka and whisky, the rowdy pupils pose for a mocking video - filmed inside their own school.
One clip shows them going on the rampage in the sixth-form common room, brandishing a bottle of champagne while brazenly recording themselves for Facebook.
A second video clip - now in the hands of police - appears to show drunken pupils shoplifting and mugging a pizza delivery man for his phone or MP3 player.
