A West Yorkshire Police Chief Constable "boasted" about smearing Liverpool fans in the aftermath of the Hillsborough disaster, a senior Labour MP has claimed.
Sir Norman Bettison, who was a chief inspector with South Yorkshire Police at the time of the 1989 tragedy, said he had been asked to help "concoct" the force's version of events, it is claimed.
Shadow transport secretary Maria Eagle used parliamentary privilege to make the allegations, which were based on new evidence from a witness who discussed the disaster with Sir Norman.
Ms Eagle, a Merseyside MP, said Sir Norman had "always denied any involvement in the dirty tricks campaign".
But she alleged he was behind the "black propaganda" campaign.