I just seen the full artical at the bottom it says something like the person can be charged with wreckless endangerment in Australia you would be charged with manslaughter the only way you won’t be charged with a crime ,is if and only if your some how manage to disarm a knife weilding person and stab them,because you feared for you life and then and only then you will be very very lucky if you don’t cop a charge. Some laws are just dumb.