It kind of does if you move to NZ. If domestic violence is reported, and there is some kind of proof, ie a witness (who doesn't have to *see* anything, for god's sake) or the victim has obviously been assaulted and/or is distressed, the police WILL visit, and WILL make an arrest if there is sufficient grounds ("disturbing the peace" is often a good fallback). The victim does not need to make a complaint - the law now acknowleges that they are often the last people to do so. The system still isn't perfect, but it's a lot better than the old way.