A former cabinet minister has said there may well have been" a political cover-up of child sex abuse in the 1980s. Lord Tebbit told the Andrew Marr Show the culture at the time was to protect "the establishment" rather than delving "too far" into such claims. His comments come after it emerged that the Home Office could not locate 114 potentially relevant files. Current MP Keith Vaz said files had been lost "on an industrial scale". The government has rejected calls for an over-arching public inquiry into the various allegations of child abuse from that era. Lord Tebbit, who served in various ministerial roles under Margaret Thatcher in the 1980s, said at the time people had an "almost unconscious" tendency to protect "the system". "And if a few things had gone wrong here and there that it was more important to protect the system than to delve too far into them," he said. "That view was wrong." Labour MP Margaret Hodge, who chairs the Public Accounts Committee, said there had been a "veil of secrecy over the establishment" for far too long. The Home Office's 2013 review found 527 potentially relevant files which it had kept, but a further 114 were missing, destroyed or "not found". Mr Vaz, chair of the Home Affairs Committee, said this represented loss of files "on an industrial scale" and it was "a huge surprise" that so much potential evidence had gone missing.