A teenage girl dials 999. Her young sister has been watching from the window as their mother is dragged into the garden by her partner and brutally assaulted. It is not the first time the sisters have called police. In fact, the girls have reported most of the 14 other attacks known to police.

This family is not alone. They are among hundreds of victims of domestic violence reported to Greater Manchester Police each week and among ten high risk cases being discussed in Bury as I sit in on a conference dedicated to protecting victims.