常任上訴法官
The Appellate Jurisdiction Act 1876 originally provided for the appointment of two Lords of Appeal in Ordinary, who would continue to serve while holding judicial office, though in 1887, they were permitted to continue to sit in the House of Lords for life, with the style and dignity of baron. The number of Lords of Appeal in Ordinary was increased incrementally over the years—to three in 1882, to four in 1891, to six in 1913, to seven in 1919, to nine in 1947, to eleven in 1968 and to twelve in 1994. The Administration of Justice Act 1968 allowed the Sovereign to make a Statutory Instrument, if each House of Parliament passed a resolution approving a draft of the same, increasing the maximum number of Lords of Appeal in Ordinary.