[QUOTE=Troy;2506257
Killing criminals outside the justice system makes it non-lawful killing and harks back to my argument about it being recursive until no-one is left to commit a crime. Or are you suggesting that murder be made legal if it is on your own property. That idea is open to such abuse that you would probably end up with only the 15% criminal element left.[/QUOTE]

I got news for you Troy, in the USA (I don't know what country you are from), it is legal to kill someone if you are in fear for your life or the life of your family.

It's called "justifiable homicide".

Many states in the US have already passed laws, where a homeowner or a legal resident of the house can shoot someone if they break into their house. The fact that an intruder has entered your home illegally constitutes a "legal threat to your life".

You need to read more.

RickThai