The biggest ever inquiry into police actions in the UK is to be launched after a report on the Hillsborough disaster.
Police watchdog, the Independent Police Complaints Commission (IPCC), said a large number of serving and former officers will be investigated over what happened on the day of the tragedy in 1989, and during the alleged cover-up afterwards.
Director of Public Prosecutions Keir Starmer also said he will look at whether any individual or corporate body should be charged over the football stadium disaster, which left 96 people dead.
Deputy chair of the IPCC Deborah Glass said: "There are... allegations that go to the heart of what happened at Hillsborough in April 1989 and individuals and institutions may be culpable for the deaths."
Both South Yorkshire Police, who dealt with the tragedy, and West Midlands Police, who investigated how South Yorkshire handled the disaster, will come under scrutiny.