A criminal aspect? Go to jail? Get real! So, you would be jailing members of the armed forces for drinking a glass of Whisky, a champagne cocktail, a pint of beer, a glass of wine? They are ALL recreational drugs.
I note Cocaine is not listed and good on you for not doing so. Its a Class A drug in the UK and illegal period, the list you quote is acceptable and lawful.
Nobody (I hope) is suggesting any form of drug taking in the Military.
is acceptable. The position has to now been perfectly clear, do drugs your history. I have no problem with that.
I am speaking in general and not about this particular case of which i know nothing.