My sister is suffering from domestic abuse. It was only emotional up to now, but today turned physical. She isn't 'with' her partner any more but they live together still and have an 18 month old baby. They haven't been together since the baby was born - this is because prior to this, my sister suffered a miscarriage and he blamed her for it. She has been trying to get him to leave for months and has kept on offering as much money as she can for him to go. He cannot afford to buy her out, so him leaving is the only way. Today he signed the mortgage over and expected the money immediately. When this did not happen (because he has not signed the transfer deed and the money is with the solicitor) he became violent - shoving her, pushing her, shouting in her face, he even threw her tea in the bin. She won't call the police because she doesn't want to jeopardise his work (because if he wasn't working, he would not be able to afford to leave) but it feels like he is getting away with it every time.
Does any one have any advice at all? I don't know what to do and I just want to help and for her to be safe. Please help.