Home Secretary Theresa May is to make a statement to MPs on allegations of organised child sex abuse at Westminster in the 1980s amid growing calls for a full public inquiry.
Former Conservative cabinet minister Lord Tebbit fuelled the clamour over the weekend when he said there "may well" have been a political cover-up at the time in order to protect "the system".
His incendiary claim followed the admission by the Home Office that more than 100 files relating to historic organised child abuse over a period of 20 years had gone missing.
The Baroness says she did not consider the "difficulties" caused by her background and family connections to the child sex abuse inquiry.
Questions have been raised of former High Court judge Baroness Butler-Sloss since her appointment last week.
22 police officers are now assigned to Operation Fernbridge - the probe into claims of a Westminster cover-up of sex child abuse.