So, nearly one-third of all prison inmates tested for drugs last year returned a positive test (The Post, June 14). How long will it be before the Government, which promised much and has delivered nothing on cannabis reform, realises that prohibition is doomed to fail? After all, if cannabis can't be kept out of our prisons, how can we ever pretend it can be kept off our streets? Gavin Middleton, Kelburn [end]
