Sir Patrick Gardiner Hastings (March 17, 1880 - February 26, 1952) was a noted British barrister who served as Attorney General for England and Wales in 1924 and inadvertently brought down the first Labour government.

Having been born on his Saint's day and having Irish lineage, Hastings was named after Saint Patrick. His father, Alfred Gardiner Hastings, had been a Solicitor but failed to build up much of a practice and frequently involved himself in business schemes of dubious legitimacy which left him out of pocket. He attended Charterhouse School, but did not enjoy his time there because of chronic asthma and a dislike for the strong discipline. As a result, despite his academic abilities, he left at the age of 16 and went with his family (suffering a period of financial trouble) to Corsica.

When the Boer War broke out, Hastings enlisted and served with the British Army. In 1901 Hastings returned to Britain determined to read for the bar, and paid his way through his studies at the Middle Temple by working as a journalist specialising in theatre gossip and reviews. He did well in his exams but when he qualified, he was forced to buy his robes and wig for his admission ceremony on credit in 1904. He then obtained an apprenticeship to a senior barrister and attended daily court sessions. He learned valuable lessons on how to structure a case, and adopted the maxim of never asking a question of a witness unless he knew the answer which would be given.

In 1910 one of Hastings' employers was made a Judge and let him take over his practice rent-free until he had built up his earnings. Two years later, Hastings lead for the defence of John Williams in the Eastbourne "Case of the Hooded Man" which made national headlines. Although Williams was convicted, Hastings won a reputation for an intelligent defence strategy, and thereafter tended to practice in the High Court in London. He maintained his reputation, becoming known for his flair, and by the end of the war he was one of the most fashionable barristers in the country. He was made a King's Counsel in 1919.

In the early 1920s Hastings decided to go into politics. He joined the Labour Party for reasons which remain mysterious, as he had no great knowledge of party policies. Hastings' critics later suggested that he spotted that the party might form a government and had no noted lawyers among its membership, and therefore knew he stood a good chance of obtaining a senior judicial job. In any event, his membership was accepted and he was elected as MP for Wallsend in the 1922 election, being appointed as legal affairs spokesman for the party.

On formation of the Labour government in January 1924, Hastings was made Attorney-General and given a knighthood that went with the job. Hastings disliked much of the drudgery of the job, though welcomed the opportunity to go into court as the representative of the government. One of his responsibilities was to bring prosecutions, and in July he agreed a prosecution for sedition of John Ross Campbell , editor of the Daily Worker, who had written an article urging troops not to obey orders to break strikes. The arrest of Campbell caused controversy in the Labour movement where the sentiments expressed in the article were thought unexceptional, and delegations of left-wing MPs went to see Hastings to demand that the prosecution be withdrawn.

After consulting with other Ministers, Hastings decided that he would withdraw the prosecution. This announcement enraged the Conservatives who put down a motion of no confidence, while the Liberal Party demanded a Select Committee investigation. The government declared either issue a matter of confidence; as the Labour Party had only a minority of MPs, the Conservatives decided to vote for the Liberal amendment which was easily carried. Prime Minister Ramsay Macdonald then called a general election, which the Conservatives won.

Hastings decided not to stay in politics and resigned his seat in 1926. He had begun an alternative career as a playwright, with The River being produced in London in 1925, and went back to the bar where he resumed his practice. He had several notable cases, including that of Princess Irina Yusupov who sued Metro Goldwyn Mayer over a film fictionalizing the murder of Grigori Rasputin led by her brother; she won £25,000 damages, an unbelievable figure at the time.

Hastings had left the Labour Party and seemed somewhat embarrassed by his membership of it. He represented Sir Oswald Mosley on several occasions when he was prosecuted for public order offences as leader of the British Union of Fascists. Hastings rejected several offers to become a Judge; during World War II he served briefly in the Royal Air Force intelligence corps. After the war, Hastings was engaged by the Newark Advertiser in defence of a libel action brought by Harold Laski who was seeking to clear his name from the newspaper's claim that he had called for socialism "even if it means violence". Cross-examining Laski, the following exchange occurred:

HASTINGS: Are there any privileged in the Socialist Party?

LASKI: Why, indeed, Sir Patrick, when you were a member—

THE LORD CHIEF JUSTICE: No, Mr. Laski.

HASTINGS: Do not be rude.

Laski's counsel later said that he hoped that Hastings would at least have said "Touché". Laski lost the case and his political reputation was ruined.

In 1948 Hastings suffered a mild stroke and was advised to retire. He died four years later.