A number of people have posted advice in the Boycott Braehead Facebook group. This is something that photographers now seem to face with depressing regularity. There is some good info here, including a cut-out-and-keep "know your rights" card the next time an over-zealous copper says he's thinking of dealing with you as a suspected terrorist whilst you're trying to enjoy a quiet ice cream sundae with your four-year-old daughter.
http://www.informationisbeautiful.ne...hts-in-the-uk/