I saw this on the BBC web site yesterday.

I remember thinking when I first saw all the Turkish barber shops, vape shops etc. when I last visited the UK, that there had to be something fishy about them. There's no way there could be enough demand to support them all. I remember thinking that they had to be fronts for money laundering or similar. Reading this article about the mini-marts and the multiple levels of criminality going on here makes me think I was probably right!