I believe that the death penalty should be bought back to the uk?:
i totally agree with you, these days what with dna its easier to prove someone is guilty, so when its proven that someone is 100% guilty, yeah, hang em!  especially paedophiles they are the lowest of the low

as for ians answer it may of been proven to not prevent further people killing but at least its less of a burden on the tax payer supporting scum like that in prison