WA: Criminal Law Amendment (Homicide) Bill 2008, came into law June 2008.
Speaking for the bill in Parliament, then Attorney General, Jim McGinty said
Quote:
Amendment of defences to murder: This bill also introduces a significant number of amendments to the defences that are available to people who kill. The bill follows the recommendations of the Law Reform Commission, which was guided by the principle that the only lawful purpose for intentional killing is self-preservation or the protection of others.
Of course you can use lethal force to defend your life or the lives of others. Your state might be different but I doubt it.Quote:
Defence against home invasion: This bill will amend the defence against home invasion found in section 244 of the Criminal Code. It will adopt the Law Reform Commission's recommendation by amending that provision to ensure that force intending to cause death or grievous bodily harm cannot be used when all that is being protected is property. This amendment will not affect an occupant's right to use lethal force when the occupant reasonably believes that violence is likely or is threatened.

