Scotland Yard has admitted that "mistakes were made" in the investigation of the attack on Kate Sheedy in Isleworth in 2004.

Two senior police have been reprimanded for their handling of the original investigation into the attack that left the former Gumley House head girl with a collapsed lung, fractured collar bone, broken ribs and liver damage.

Ms Sheedy, 18, was returning to her Isleworth home after a night out with friends when she was run down after stepping off a bus.

She spent more than a month in hospital.

Ms Sheedy complained in 2005 that the officers who originally investigated the attack failed to check CCTV footage of the area.

The Met Police said two officers - a detective constable and a detective sergeant were given words of advice while the two senior officers - a detective inspector and detective chief inspector - were given formal written warnings.

"We recognise mistakes were made in the original investigation into the attempted murder of Kate Sheedy, and measures to prevent a repetition have since been implemented at Hounslow," the Met Police said in a statement.

It said new procedures ensured CCTV was closely scrutinised in all serious sexual and violent crime cases and a special intelligence group had been set up.

Bouncer Levi Bellfield was today found guilty of attempting to murder Ms Sheedy as well as the murders of Amelie Delagrange, 22, on Twickenham Green in August 2005 and Marsha McDonnell, 19, in Hampton in February 2004.