If they have a history of coercive or abusive behaviour or if they were doing things around the time of the rape that was cause for concern.
Alison Saunders says she wants to enable juries to assess the whole picture.
I think this is a great move. Well done Alison Saunders
www.telegraph.co.uk/news/2017/08/08/rape-juries-hear-mens-sexual-history-increase-chance-conviction/