Broken jaw is usually GBH. The test is whether, without treatment, the injury would be likely to endanger life or cause permanent injury to health. If the broken jaw requires surgery (as most do), it will usually constitute GBH because without surgery there can be permanent issues with eating or speaking. Lesser facial fractures will usually be AOBH, but broken jaws are almost always GBH (see Marley Williams, Murray Newman).Broken jaw is AOBH, if the victim is refusing to sign up Detectives would be working on gathering other evidence however very hard to proceed without a victim sign up.
A wounding on the other handing doesn't require a victim statement and can proceed without their consent.
There is no distinction between wounding, AOBH or GBH in terms of whether a complainant is necessary. There are differences in terms of which defences can be run (provocation cannot be run on GBH or wounding, consent cannot be run on GBH), but a complainant is a necessary ingredient for each offence.
I’ve never had either WA Police or the State take an assault/GBH/wounding matter to trial without a willing complainant. On each occasion where the complainant has not been a willing participant, the matter has ultimately been dropped or was never charged in the first place. And on another, relevant note, every single regional assault (or similar) matter I had listed for trial in 2025 was ultimately discontinued because the complainant was not supportive of the prosecution.





