Lord Chief Justice

On the resignation of the Earl of Reading as Lord Chief Justice of England in 1921, Hewart asked to succeed him. However, David Lloyd George was reluctant to lose him, and, as a compromise, the 77-year-old Sir A. T. Lawrence (Lord Trevethin from August 1921) was appointed instead as a stop-gap; he was required to furnish an undated letter of resignation to Lloyd George, an arrangement which scandalised many: Lord Birkenhead thought it 'illegal', while judges boycotted the farewell ceremony for Lord Reading.

On 3 March 1922, Trevethin 'resigned' (an event which he learned from The Times), and Hewart was duly appointed Lord Chief Justice of England on 8 March 1922, and was elevated to the peerage as Baron Hewart, of Bury, in the County of Lancaster on 24 March 1922.^[1]

In May 1922 Hewart was closely involved in the drafting of the Constitution of the Irish Free State. He worked closely with his Irish counterpart, Hugh Kennedy in May 1922 to finalise the text in time for elections the following month.^[2]

In 1929, Hewart published The New Despotism, in which he asserted that the rule of law in Britain was being undermined by the executive at the expense of the legislature and the courts.^[3] This book was very controversial^[4] and led to the appointment of a Committee on Ministers' Powers—chaired by the Earl of Donoughmore—but its Report rejected Hewart's arguments.

He has been described ^{[by whom?]} as "one of the most vigorous and vociferous believers in the impeccability of the English jury system of this or any other century".^[5] However, in 1931, Hewart made legal history, when (sitting with Mr Justice Branson and Mr Justice Hawke) he quashed the conviction for murder of William Herbert Wallace, on the grounds that the conviction could not be supported by the evidence. In other words, the jury was wrong.

Lord Hewart was the originator (paraphrased from the original) of the aphorism "Not only must Justice be done; it must also be seen to be done."^[6]

In 1940, Hewart was asked by telephone by 10 Downing Street to resign; he duly did so on 12 October 1940. On his retirement, he was created Viscount Hewart, of Bury in the County Palatine of Lancaster, on 1 November 1940.^[7]