Unfortunately English law around intruders in the home is quite vague and very different from the Castle Doctrine laws in the USA 'As the law currently stands,

Unfortunately English law around intruders in the home is quite vague and very different from the Castle Doctrine laws in the USA 'As the law currently stands, a person in possession can use no more force than they reasonably believe necessary to remove a trespasser from the premises' http://en.wikipedia.org/wiki/Defence_of_property http://en.wikipedia.org/wiki/Defence_of_property People have been convicted of using force against intruders in their home. However, a group of angry rioters is somewhat different.