Savile and Newsnight: Who was in charge
Former head of Sky News Nick Pollard was brought in to review the way a Newsnight report dealing with allegations of child abuse against Jimmy Savile was treated by the BBC.
His review was set up in October amid mounting questions about why the report was dropped from the programme.
Newsnight's editor Peter Rippon stepped aside, and director of news Helen Boaden and her deputy, Steve Mitchell, removed themselves from involvement in coverage of Savile allegations, to allow the review to proceed.
Pollard is expected to report on whether there were any management failings within the BBC.
Boaden and Mitchell stood aside from their roles completely in November after Newsnight broadcast a report in which a former senior Conservative politician was wrongly accused of child abuse.
This followed the departure of director general George Entwistle, who resigned "in the light of the unacceptable journalistic standards" of the November Newsnight report.
The diagram below shows the chain of command when the decision was made to drop Newsnight's Savile report in December 2011.