Is it legal to kill a scotsman in York? I once heard that it is allowed to kill a scotsman in York, if you do it with a bow and arrow. Apparently there is no danger in this law, since the bow and arrow needed to be made by a no longer existing factory. But is it really true?

This is often repeated, but sometimes in reverse: for example this Guardian article from 2007 states the Scotsman must be holding the bow and arrow.

Unlike the Welshman in Chester question, I can't see any acknowledgement by York City Council that there is any historical record of this. But such instructions have often been given during wars and there were many Anglo-Scottish wars, so it is not impossible; such instructions cease to apply once peace is concluded.