David Cameron ordered an investigation today into whether a north Wales child abuse inquiry "properly did its job" following allegations a senior Tory was involved.
The Prime Minister said he was taking action to make sure the "truly dreadful" claims were not left "hanging in the air."
The independent investigation will look at whether the inquiry held 12 years ago into abuse at the Bryn Estyn children's home in Wrexham during the 1970s and 1980s was "properly constituted."
Abuse victim Steve Messham has claimed a senior Conservative Party figure was among those involved in abuse.
Original inquiry chairman Sir Ronald Waterhouse reportedly dismissed evidence raised at the time of the involvement of senior Tories as "embarking in the realm of fantasy."
Labour MP Tom Watson claimed last week that a senior Margaret Thatcher aide was involved in a paedophile ring.