This may depend on your personnel section, but I think many people would view that as "bona fide" leave because it's for a particular purpose on a pre-determined day that's not really in your control. If you booked time off a while ago, it should be straightforward - if not, they may look askance at it. Speak to line manager / personnel officer for clarification, and have a back up plan (maybe it's possible to compromise on a half day? At worst you will have to take unpaid leave, as just going awol is likely to be a disciplinary offence).[/quote]
But if i turn up and can't get into the buiding what do you do ? Its all up in the air at the moment and typical of the unions and the clowns that run them.