This subject raises so much hot air, but how much of a potential contribution to safety is there? How many accidents can we put down to 'inebriated/drugged pilots'. You have to dredge the most obscure corners of the annals of aviation to actually find one. I see far more relevant dangers we should be worrying about- I think the alcohol/drug thing has been done to death! Look around....terrorism, congested skies, old equipment, poor ATC in Africa......and we are finely discussing page after page if crews end up having one drink too many too close to report time? Show me the actual danger happening now if it exists- I think it has been sorted out as far as humanly possible. I would prefer to see all the non-expert pprune 'pontificators' giving some brain power to the other far more relevant problems!