Here is an interesting UN report which says that individuals don't have a right to self defense. The legal language is hard for me to decipher, but I think this reflects socialist or collectivist thinking where rights are something granted by the state, not something people inherently have. As I undestand it, England's laws do not permit a person to defend himself if attacked. The UN agenda is to disarm people, so this report should be expected.

http://armsandthelaw.com/archives/2006/08/un_report_procl.php