Surprising no one with a memory for these things, the Guardian reports,

Mark Duggan, whose shooting by police sparked London’s riots, did not fire a shot at police officers before they killed him, the Independent Police Complaints Commission said on Tuesday.

Releasing the initial findings of ballistics tests, the police watchdog said a CO19 firearms officer fired two bullets, and that a bullet that lodged in a police radio was “consistent with being fired from a police gun”.

Police force with history of institutional racism, check. Confrontation with a member of a minority group, check. Suspicious death, check. Initial statements from the police that are misleading at best, check.

I’m sure that people who study urban policy and policing can provide both a longer list of ingredients and of riots. You can’t really say which bad police incident will lead to a riot, but with the ingredients above, especially with a heaping helping of economic dislocation, eventually there will be a riot.

The work of prevention should have been done long ago — the Lawrence report is more than a decade old — and the hard work of preventing the next round will begin as soon as the fires this time are out. Many media outlets will say controlling the riots will be a test of Cameron’s premiership. Nonsense. The test is what he and his government and that of the Mayor of London, fellow Conservative Boris Johnson, will do to keep a repeat from happening. There won’t be many headlines, just lives saved and improved.