There needs to be a grown up conversation about decriminalising some drugs - because the so-called war on drugs has patently been lost; and the illegality of it simply means that the whole trade is done by crims and gangsters, and the money involved goes on to fund all manner of nasty things.
Whilst there's undoubtedly societal problems from some people's use - there are significantly more from alcohol - over-use of which is part of our culture and is not only tolerated, but celebrated. That seems wrong to me - particularly given that plenty of people use recreational drugs of a weekend, without robbing pensioners or causing mayhem.
With regard to Walker and Chase - this is an employment issue and a simple one; they've been found to have drugs in their system and, like any employer, if its prohibited by the club, they can be sacked; they are bloody idiots for not understanding how to flush it from your system - plenty of exercise and lots of water, and it's gone in 48 hours - or the byproduct is, since cocaine itself is not testable.