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formerly unregulated profession
The violent drug-dealing pimp doing door duty at my local strip club wore his SIA licence on his sleeve in the approved manner. It was genuine, too, unlike the passport he used for identification when obtaining it.
I don't have much experience of door staff, but what I do have clearly indicates that the current regulations make practically no difference.
Nah, they're made exclusively for fat bouncers outside dodgy bars and clubs.