Oh god not this <| sep |> I know a few of the laws have changed since I did my personal licence , but your company should still have a Designated Premises Supervisor I believe , who ' s done a training day and test on all the rules . I ' d recommend speaking to them if you have any questions , they are ultimately responsible for any consumption of alcohol on the premises so should be deciding your policies . But no , you can refuse anybody you like service you ' re not legally obliged to sell people your stuff . And if someone cannot prove their age , you can take drinks off them and ask them to leave if you want to . <| sep |> I ' ve tried it a couple of times and it seems to still snap off at least a little bit of the glass neck of the bottle