The period c.1900 to the present day saw changes in crime and punishment. These resulted from developments in technology and changes in the attitudes of society, including the abolition of the death penalty.
In the early 20th century, the use of the death penalty continued. It had been the most serious punishment available since c.1000. Pressure to end the death penalty increased from the 19th century.
In 1953, Derek Bentley was hanged for the murder of a policeman. This case was an important turning point in the campaign to abolish the death penalty.

In 1952 Derek Bentley, a 19-year-old with severe learning difficulties, was caught burgling a warehouse in London with a friend, Chris Craig. Craig was carrying a gun and Bentley carried a sheath knife and knuckleduster. When the police arrived to arrest both men, Bentley shouted ‘Let him have it, Chris’ and Craig fired the gun, injuring Detective Sergeant Fairfax. Bentley did not use his own weapons and did not try to escape arrest. Craig continued to shoot as more officers attended. One police constable was shot and killed before Craig jumped from the roof and injured himself.
Bentley and Craig were both charged with murder under a charge of joint enterprise. Bentley faced the death penalty if found guilty, but Craig did not because he was under the age of 18. During the trial, Bentley and Craig denied that Bentley had said ‘Let him have it’. Bentley’s lawyer argued that, if he had said it, he could have been encouraging Craig to hand over the gun. Some people also felt that Bentley should not have given evidence due to his learning difficulties.
Bentley was found guilty and sentenced to death. The jury asked for mercy for him, and his lawyer’s appeals were turned down. Craig was imprisoned and not released until 1963.
Bentley’s sentence caused a public outcry. Two hundred MPs signed a memorandum asking the Home Secretary, Sir David Maxwell Fyfe, to cancel the execution. However, this was refused. On the day Bentley was hanged in January 1953, 5,000 protesters outside the prison chanted ‘murder’. This public outcry contributed to the argument against the death penalty. Many argued that Bentley’s case had been a miscarriage of justice and criticised the use of capital punishment.
In 1998, Bentley’s conviction for murder was set aside by the Court of Appeal and he was pardoned.
Pressure to end the death penalty increased throughout the 20th century. There were arguments on both side of the debate:
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Two other high-profile cases helped to turn the government against the use of the death penalty: