Up to four serving MPs could be questioned by detectives investigating claims of an Establishment sex ring cover-up . Their names have been handed to officers probing an alleged conspiracy of silence that protected senior figures for decades . The MPs are suspected of holding important details about the handling of previous criminal inquiries . Four MPs could be questioned by detectives investigating claims of an Establishment sex ring cover-up and Steve Rodhouse , Scotland Yard , said they will go ‘ where the evidence takes us ' Scotland Yard ’ s Deputy Assistant Commissioner Steve Rodhouse said officers will go ‘ where the evidence takes us , without fear or favour ’ . He was speaking after the Independent Police Complaints Commission revealed it is looking at Met corruption claims from the 1970s to 2005 . As questions continued to emerge yesterday about whether other powerful men escaped justice , it was claimed that : . Allegations : It has been claimed that the late Cyril Smith was held and freed seven times over 30 years by police investigating claims he was a paedophile . Last week the Independent Police Complaints Commission ( IPCC ) announced it is investigating a raft of cover-up allegations against the Met . The 14 separate referrals , which span four decades , indicate the scale of the task police face in getting to the bottom of historic child abuse cases . The allegations include suppressing evidence , hindering or halting investigations and covering up offences because of the involvement of MPs and police officers . Documents seen by the Daily Mail indicate that up to four serving MPs could be questioned as part of their work . None of the public figures has previously been named publicly in connection with the scandal . It is understood that victims believe they could hold highly sensitive information about their abusers which could help further their inquiries . It was also claimed yesterday that a member of the Queen ’ s family and an MP were identified as part of a major child abuse inquiry . But the Sunday Mirror claimed the operation was shut down by the Crown Prosecution Service for national security reasons . One former Met officer told the newspaper : ‘ I was in a car with two other vice squad officers . They were discussing a madam who had provided a girl of about 15 to Oliver Reed . ‘ The detective sergeant said he had just had a major child abuse investigation shut down by the CPS regarding a royal and an MP . ‘ He did not mention names , but he said the CPS had said it was not in the public ’ s interest because it ‘ could destabilise national security ’ . ’ Separately , further inquiries are being carried out into whether detectives were told to limit a child abuse investigation centred on the former MP Lord Janner . A home belonging to the 86-year-old peer , who was a Labour MP in Leicester for 27 years , was searched in 2013 . Last year it was reported that in 1989 a detective sergeant had been told not to arrest Janner or search his home . Earlier this month Home Secretary Theresa May appointed Justice Lowell Goddard to head a public inquiry into historic child sex abuse . The senior New Zealand judge will investigate whether public bodies and other institutions have ‘ taken seriously their duty of care to protect children ’ . The reformed independent inquiry into child abuse will be able to ‘ compel witnesses ’ in a bid to get to the bottom of many difficult and complex claims . On Saturday , the Daily Mail revealed how Met deputy commissioner Albert Laugharne claimed he was part of one cover-up . He said that , while head of Lancashire police , he was asked to lie about allegations involving Smith , later unmasked as a paedophile . Sarah Green , deputy chairman of the IPCC , said : ‘ I would like to reassure people our investigations will be thorough and robust . ’
Four MPs could be questioned over 'Establishment sex ring cover-up ' Scotland Yard have said they will go ‘ where the evidence takes us ' Former Rochdale MP Cyril Smith was held and freed seven times over 30 years by police investigating claims he was a paedophile . A Royal was identified in a suspected paedophile ring under investigation before it was shut down because it could ‘ destabilise national security ’ . Flamboyant Welsh MP Leo Abse , who died in 2008 , is under investigation by police after being named by three alleged survivors of child abuse . A serving MP is at the centre of at least one of the cover-up inquiries because his name was discovered in documents at the home of a paedophile in the early 1990s .