What are the BBC’s guidelines on impartiality and do they apply to Gary Lineker?

What are the BBC’s guidelines on impartiality and do they apply to Gary Lineker? (PA)

Match Of The Day presenter Gary Lineker has been asked to step back from his hosting duties on the BBC show after becoming embroiled in a row over impartiality.

However, a former BBC executive has said there is “a lot of confusion” over whether the corporation’s guidelines should apply to Lineker – who works as a freelance broadcaster.