Impeachment is a process in which the parliament of the United Kingdom may prosecute and try individuals, normally holders of public office, for high treason or other crimes and misdemeanours. First used to try William Latimer, 4th Baron Latimer during the English Good parliament of 1376, it was a rare mechanism whereby parliament was able to arrest and depose ministers of the Crown. The last impeachment was that of Henry Dundas, 1st Viscount Melville in 1806; since then, other forms of democratic scrutiny (notably the doctrine of collective cabinet responsibility) have been favoured and the process has been considered as an obsolete—but still extant—power of parliament.