Safeguard Medical Sponsors the Knife Angel in Hereford This summer Safeguard Medical is sponsoring the Knife Angel’s tour stop in Hereford. The Knife Angel, also known as The National Monument against Violence and Aggression, is a contemporary sculpture formed from 100,000 confiscated knives that were received from 43 Police Forces and anonymously donated from 200 knife banks across the UK – many of …