I'm curious how is she still able to do it, looking on VS it looks like the Chinese guy is back also...
Difficult to stop her if she's working alone as she's not breaking any laws unless the local council run a licencing scheme.
Only way to stop her would either be to close the premises on fire/health & safety grounds or to get a magistrates order closing the place for being a place of disorder/crime/public nuisance (I'm not sure what the legal term is).
Howoever if she/they are running a team of girls then all she's doing is sticking her head into a tighter noose, but if she thinks she's going down anyway, then maybe it's a case of in for a penny, might as well go for a pound...........(to metaphorise a metaphor)