DM has been married to a man for just over 10 years. Us kids (4 of us, 2 local inc me) never really took to him but we were all polite enough, thinking she loves him so we made the effort.
Then last year things started to be wrong. They were planning a holiday and they fell out and he was saying she couldn't go. She was really angry and my DBro managed to have a private word with her. It came out that she had put his name on half the house (he only put a small amount towards it), she bought a car and put it in his name only, and she wasn't allowed to go to see us without him, and he listened to all her phone calls etc. All sorts of coercive control shit came out of the woodwork.
She was angry at that point, so DBro got her a solicitors appointment to look into her position as she didn't want to lose the house etc. Then he apparently calmed down, she decided he had just been depressed and everything was rosy so she cancelled the appointment and had the holiday.
We kept in touch with her, continued to tolerate him as we don't want to cut her off from us and we don't think he knew she had told us.
Then yesterday he was chatting with my DBro who was there, he had a huge rage on out of nowhere and it got physical. He grabbed DBro clothes (ripped) and was pushing him. DM was trying to get in between then and crying at him to stop. He eventually went to another room, calmed down and then came back and sat silently in the room with DM and DBro. Apparently Dm was already trying to make excuses so clearly she isn't ready to leave.
So he now knows we are aware of what he is really like whereas before we pretended not to know to keep her safe. Now he knows are all scared for her but DBro said she was making excuses so likely isn't ready to move on yet. He isn't sure about reporting the assault to the police as, if she stays, it would likely increase the risk to her.
What can we do? We just want her to be safe. He owns half the house now so she can't just change the locks, even if she did want to. We are looking into some type of small alarm for her but in the meantime what can we do? Especially since she doesn't seem ready to press charges etc. He was apparently telling her yesterday that she can't see any of us anymore. We would be prepared to go round and take her away to safety but she wouldn't go and it's her house.
Can we talk to police without giving details? Would they contact her/him anyway? We don't want to make it more dangerous for her. This was the first time he was physical (with us, not sure about her) so a significant behaviour has changed now so we don't know how unpredictable he will be now. DBro is going to take photos of the damage to his top and write an account of what happened but that won't be enough to do anything as he thankfully isn't hurt.