Jet II
That's what the Independent says.
Quote from Balpa web site (not included in the newspaper of course!)
‘BALPA’s policy is well known – zero tolerance of any misuse of alcohol or drugs. In fact we have urged the Government to do more. We are advocating a system used in the United States called ‘peer intervention’ so that any pilot who has any suspicion about a colleague’s behaviour can have that colleague entered into a programme which is managed by, and supported by, both the union and the company. ‘
Can't find any reference at all to balpa refusing to allow anything!