R. v Bow Street Metropolitan Stipendiary Magistrate Ex p. Pinochet Ugarte (No.2)[1] was an English legal case which involved the unprecedented setting aside of a House of Lords judgment based upon the possibility of bias. Lord Hoffmann's failure to declare links to Amnesty International meant that a previous House of Lords judgment on the immunity of former Chilean dictator General Augusto Pinochet had to be set aside.[2]