A second inquest into the death of a man carrying a table leg who was shot by police is to begin on Monday.
Harry Stanley was returning from the pub when he was shot
Harry Stanley, 46, from Hackney, east London, was shot in the head and the hand by two Met officers in 1999.
He was returning home from a pub carrying the table leg in a plastic bag, which officers thought contained a sawn-off shotgun.
His family went to the High Court to have the original open verdict quashed and a new inquest ordered.
Mr Justice Silber told the High Court in April that the first inquest in 2002 was an "insufficient inquiry."
Tim Owen QC, appearing for Mr Stanley's widow Irene, told the judge it was now accepted by the police that the original inquest was flawed and a fresh investigation should take place.
The shooting, on the 22 September 1999, happened after police said they received a call from a person who reported a man leaving a pub in Hackney carrying a sawn-off shotgun in a bag.
Inspector Neil Sharman and PC Kevin Fagan, from the Met firearms unit S019, saw a man fitting the caller's description and carrying a plastic bag.
They shouted to him, but he did not reply. When he turned, the officers shot him.
At the inquest they said Mr Stanley, a painter and decorator originally from Bellshill, Lanarkshire, was holding the blue plastic bag in a way which suggested that he was about to shoot a sawn-off shotgun.
The family's legal action was backed by the pressure group Inquest, which is seeking reform in the coroners' courts.