Brushing aside your comments on a case which is still being investigated nearly three decades later, none of the fans outside had bought drink in the ground and drunk it in view of the pitch, so its fairly irrelevant to the current law. The current rule does not stop people from getting drunk...
At the pre season friendly at Lewes fans were not allowed to drink in view of the pitch. We were told that because the game was advertised as Lewes vs BHA as opposed to Lewes vs a BHA XI, it had to abide by FL rules and they had to ensure that they did not allow fans to drink and watch the...