THE sister of a black man who died in police custody 15 years ago condemned the police complaint watchdog’s procedures today after it gave an “unreserved” apology for its failings.

Sean Rigg died of a heart attack in 2008 after police restrained him while he was having a mental health emergency and then kept him in a cage in the back of a police van before taking him to Brixton police station.

The case was investigated by the Independent Police Complaints Commission (IPCC), but its findings were at odds with evidence given to a jury at an inquest into his death.