Ninety-six football fans who died as a result of a crush in the 1989 Hillsborough disaster were unlawfully killed, the inquests have concluded.
The jury found match commander Ch Supt David Duckenfield was "responsible for manslaughter by gross negligence" due to a breach of his duty of care.
Police errors also added to a dangerous situation at the FA Cup semi-final.
The prime minister said the inquests had provided "official confirmation" fans were "utterly blameless".
After a 27-year campaign by victims' families, the behaviour of Liverpool fans was exonerated.
The jury found they did not contribute to the danger unfolding at the turnstiles at the Leppings Lane end of Sheffield Wednesday's ground on 15 April 1989.
