In London at the time of the Krays, the maltese were known to dominate the Soho sex industry.
Malta Today
In the 70s I interviewed unmarried mothers (as part of my Dhss job).
Several admitted prostitution, when in London, under the control of a Maltese pimps.
The link indicates that control has now passed to Albanians in London.
My mentioning this is not intended to reflect adversly on the whole population of Malta, but to demonstrate that the practice of pimping appears to be more prevalent amongst those in our population who have immigrated here.