A celebrated example was the use of the freshly-minted "Prevention of Terrorism Act" to stop an old man heckling the Foreign Secretary: https://www.telegraph.c

A celebrated example was the use of the freshly-minted "Prevention of Terrorism Act" to stop an old man heckling the Foreign Secretary: https://www.telegraph.co.uk/news/uknews/1499466/Heckler-82-who-dared-called-Straw-a-liar-is-held-under-terrorist-law.html https://www.telegraph.co.uk/news/uknews/1499466/Heckler-82-w... Notably in that case the police yet again reflexively denied actually using the power: "At first Sussex police denied that Mr Wolfgang had been detained or searched but a spokesman later admitted that he had been issued with a section 44 stop and search form under the Terrorism Act." which rather suggests that they used as a convenient way to stop the government being embarrassed, as opposed to its proper use of frustrating serious crime (if they really thought he was a terrorist he'd have been processed with more diligence).