(Helen Duncan (1897 – 1956) was a Scottish medium. During World War II, she held a seance in Portsmouth at which she indicated knowledge that a warship had been sunk. Because this fact had been kept from the public, the British Admiralty chose to attempt to discredit her. She was arrested and eventually charged at first with conspiracy and then witchcraft, she was jailed for nine months. Winston Churchill was less than impressed with the whole thing and eventually repealed the Witchcraft Act in 1951.)
It’s only 62 years since the last person was prosecuted for witchcraft in the UK.