I was taught that the following three things must bepresent before you can use deadly force (which should be used if all other means have failed, i.e. locks on doors, verbal commands, etc.) whether you are in your home, or not:
1) Ability (the perp musthave the capabilityto inflict serious bodily harm to you or someone else)
2) Opportunity (the perp must have themeans to inflict serious bodily harm to you or someone else)
3) Intent (the perp must have shown a desire to inflict serious bodily harm to you or someone else)
If any one of the three are missing, you should not use deadly force. If you do, you will have a tough time justifying why you used it in a court of law.
Obviously, if someone has broken into your home, you grab your .40 cal, and, youyell "Get out, or I will bust a cap in you're ass,"and, they come toward you orsomeone else, you will be put in a situation to preservelife if the perp doesn't run for their life.
A Castle Doctrine will help Virginians in a murder case or wrongful death civil suit since (in my opinion) it will take a lot of the guess work out of why the perp broke into your home. Just my two cents.
2nd Amendment........Use it........Or, lose it!!:X