yes indeed in Vic and SA a lawful weapon is just that
SA has a clause about fair warning thats hung a few folks as well as a phrase "least injury"
if the guy says' I'm gonna kill you " and you have a witness, your cool if you shoot him in the bollocks , blow his head off and there'll be a coroners inquiry and you'll walk maybe .. depends on too many factors , if any civil liberties or anti gun coalition folks take it up for one ...
NSW you must prove that your life was at risk , not just you beleived it
i got jumped a while back you may remember the news story , anti sharia campaigner gets jumped by 4 pro jihadi's on belmore road riverwood , they pull up leave the keys in the car doors open , grab a baseball bat from the boot , and a machette from somewhere and attacked a guy with his arms full of shopping
the guy gets the baseball bat and gets stuck in to them and one bolts leaving the original bat holder on the deck and another hiding behind the small one waving the machette when the cops arrive
thankfully there was a heap of video , traffic cam and security CCTV
they claimed i attacked them , as i'm such a racist
when that failed they tried to charge me civilly ..
didn't fly , why / mainly the car, how they left it there running waiting a getaway that did not happen
they came after me so that intent to use those weapons and the machette justified me breaking one arm and a brain and a ankle , with a weapon i took off them , if i had of had a knife and used that i may not have got off totally free ..
thats NSW ..
shoot someone who's not armed and breaks into your place and you'll be in court like the folks in the sydney papers recently , and that bloke who tasered a burgler , he's still locked up awaiting info , the burglar has got bail ... he wasn't armed ( although they did find a screw driver the gent stated he was threatened with , but he's gotta go to court to say ...)
but here s where we ( the shooters) had their first win ,
the amendment was about protection of family or others
if some scum breaks into your house and has your kid, or wife , one between the eyes will not be questioned ... or two , no more , cant over do it eh

they are funny that way
but defending others allows and negates the touchy feely warning and minimal force junk
we are working on castle doctrine that you dont have to wait till they are in and a threat ( like somone half way through your window is less of a threat than someone all the way in ) maybe warned and dealt with if they fail to respond
Shooters party of old and shooters and fishers today have had a few good wins for folks and working on others too