Prefer my original quote thanks Count.
Tony Martin had the right to live in peace in his Norfolk home. It does give him the right to murder a 16 year old boy because he was breaking into his home in the middle of the night.
If we were to use your quote where would it all end?
Use any amount of force rather than 'reasonable' force to apprehend a burglar? We would end up like the USA where some poor British guy was shot while trying to seek assistance by hammering on the front door of a house at night, the local police found the house owners action as reasonable. No thanks.