British Transport Police and CPS also admitted failingspublished at 11:02 BST
The Met Police is not alone in admitting failings for the handling of Simon Levy.
British Transport Police (BTP)'s investigation into Levy's sexual assaults was beset by delays, meaning he was not charged for more than six months, despite being filmed carrying out an attack.
Det Ch Supt Pete Fulton, from the BTP, said the delay "absolutely wasn't good enough" and was down to "incompetence" by two officers who have since been moved to other roles.
Meanwhile, the Crown Prosecution Service (CPS) has also been accused of acting too slowly.
Lisa Ramsarran, chief crown prosecutor for the CPS, said: "Our actions fell short of the standards that victims, families and the public are entitled to expect.
"In particular, there were points where we could and should have taken a more robust approach to representations about bail, based on the information available."





