The Widgery Tribunal was a judicial inquiry established by the British government in early 1972 to investigate a large number of deaths and shootings caused by the actions of the British Army in the Bogside, Derry, on 30 January 1972 during what became known as Bloody Sunday. On 31 January 1972 the lord chief justice of England, Lord Widgery, was appointed by British prime minister Edward Heath to conduct this inquiry. Sitting by himself, Widgery worked quickly: he heard evidence, first in Coleraine, Northern Ireland, in February and March of that year, with further hearings held in London in March. One hundred and fourteen people were called to give evidence.