The thing is - we have a box for 'Forced entry required Y/N' which we never use (because if we force an entry I'll document fully why I did it, not tick a box), so a similar tick box of 'Alcohol related Y/N' wouldn't be a hardship. And the compilation of the data would be automatic as the report forms are scanned by computer. So no extra money needed. Simple really - it just needs the will to be implemented.