Recent revelations of the secret activities of British police in the North make it “imperative” that the Undercover Police Inquiry (UCPI) sitting in London is extended to Northern Ireland, Kate Nash said last week. And she should know.

Kate’s brother was killed and her father seriously wounded in the Bloody Sunday massacre in Derry in January 1972. She waited 46 years for an official Inquiry to issue a report, and resisted the temptation to call it quits at that point. Some key aspects of the planning and cover-up of the killing had been ignored in the report of Inquiry chairman Lord Saville.

“I was overjoyed that Saville found that my brother and my father had been innocent people out marching for civil rights,” she said. “But I still want to know who was ultimately for the paratroopers bursting onto our streets and shooting to kill.