The "right and just" solution is unattainable. Yes, shoot someone if they invade your property and by implication threaten you, your loved ones and your property but be prepared for a team of lawyers to descend on you to prosecute or defend, either way it's going to cost you financially and emotionally.
The choice has to be made in a split second when you are surprised, shocked, scared $hitless and doing what is necessary to protect your family and home. Later on, in a wood panelled Courtroom with a bunch of smartar$e lawyer$ after your hide in the cold light of day there is a totally different perspective on things.
The choice has to be yours but it would be nice to have the comfort of legal support and the choice if several armed predators with ill intentions break into your home at three in the morning. Since Dunblane and the over reaction by the Government and media (Gun control was ever a pet of the left in the UK), around two million weapons have now been left in the hands of the bad guys and whose civil liberties are now eroded most ?
Basically the Police have lost the plot and get vindictive if an individual points out their shortcomings by doing their job for them. The farmer in UK, Tony Martin, is virtually a political prisoner because the establishment can't or won't admit they are losing control and they won't release him until he shows "remorse", another word for agreeing to the official line.
Incidentally, one of the vermin who was wounded when he raided the farm has a record as long as your arm and had the temerity to try to sue for loss of earnings. The **** had never worked a day in his life !