A report on the massacre was commissioned by Home Secretary Douglas Hurd from the Chief Constable of Thames Valley Police, Colin Smith. It is one of three highly costly firearms atrocities in terms of lives in the United Kingdom since the invention of such rapid fire weapons, the other two being the Dunblane massacre and Cumbria shootings. The massacre led to the Firearms (Amendment) Act 1988, which banned the ownership of semi-automatic centre-fire rifles and restricted the use of shotguns with a magazine capacity of more than two rounds. The Hungerford Report had demonstrated that Ryan's collection of weapons was legally licensed.