There is a restraining order, active court cases, bail, all that stuff. The victim is packed up and moving out of their shared apartment today to a neutral location. I guess what I meant by that is that we are in a rural area. Police response time to a 911 call is regularly 45+ minutes. A violent spouse can do a lot of things in 45 minutes. Best to avoid that entirely.
I'm reasonably sure that the victim's physical security will be assured as of this evening. I'm looking forward, trying to think ahead of any ways (technical or not) that the abuser could use to find their new location.
Also, anything like a lease or DL update can lead to the address being found in a background check.
Apparently our state has a program for secret mailing addresses. From what I gather, victim advocates can set up a mailing address at a state govt building and from there it'll get forwarded on. I think the plan is to use that for official documents for the foreseeable future.
Edit: Also consider hiring a private detective to see if the person is actually doing serious physical stalking, or buying things like guns.
https://anonymousplanet.github.io/thgtoa/guide.html
"aren't able to really do much until something terrible happens again."
Really hoping this doesn't mean there isn't any physical separation or isn't a restraining order. If this is still occurring, her immediate concern should be physical security and the will to do whatever may be necessary as it escalates.