The chief executive of the NSPCC Peter Wanless is to lead a review into the Home Office investigation into allegations of historical child sex abuse, Home Secretary Theresa May told the House of Commons.
The review will take eight to 10 weeks and will look at the Home Office's investigation and also how the police and prosecutors handled information.
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.