It's the "Give them an inch and they'll take a mile" situation which was encouraged by the last Govt pandering to them in the quest for the Holy Grail of Multiculturalism. Of course Muslim drug dealers in the UK don't fancy the idea of being dealt with under Shariah law as they would be wandering about headless and handless or dangling from a crane jib.
This country has welcomed immigrants for centuries and over time the newcomers have assimilated and integrated into our culture, values and way of life. This is how it should be but as a means of buying votes for citizenship Labour made life easy for the criminals and extremists.