Claims of two-tier policing and uncontrolled immigration may not be borne out by the facts, but that has not stopped them being played up for political ends

As the people of Glengormley, on the northern edge of Belfast, tidied up and prepared for more violence in the midst of what has been described as a modern-day pogrom, a court 500 miles away in Southampton, on the south coast of England, started to deal with its own outbreak of thuggery.

The trigger for this week’s riots in the Northern Irish capital had been the image of a black assailant who appeared to be stabbing and slashing his supine white victim in the face and neck while shouting in Arabic. The suspect was later revealed to be a refugee from Sudan.