David Warne sent me a query via his iPhone. (I'm always impressed by new technology, but email/iPhone doesn't give me a clue as to the whereabouts of my correspondent.)

Anyroad, David asked: "Could you tell me if the law has been changed yet regarding proxy sales of cigarettes to those underage, or is it still legal?"

The answer is: it depends where you are. The Scottish Parliament recently passed legislation to make this illegal, but in England and Wales no such law has been passed. It is regarded as difficult to enforce.