A matter of consent.

Earlier this week, Australian of the Year, Ms Grace Tame, called for a national definition of consent.

Anna Krien holding a copy of her book 'Night Games.' Source: AAP

Here is an excerpt from an interview we did with author Anna Krien on her book 'Night Games: Sex, Power and Sport,' where she explores the concept of consent in a rape case that implicated players from the Collingwood AFL club and formed the subject of her award-winning book.