A man who admitted sending a hoax anthrax letter to the Prime Minister is due to be sentenced.
Vincent Potter, 60, claimed potentially lethal powder was in correspondence posted to Theresa May, but the mail never reached its intended target after specialist postal workers intercepted it.
No anthrax was found in the letter but Potter, from the village of Mayfield in East Sussex, was arrested in a counter-terror probe, although he was never charged with a terror offence.
He pleaded guilty last month to making a noxious substance hoax on or before August 23 last year, under section 114(2) of the Anti-Terrorism, Crime and Security Act 2001.
Prosecution documents drawn up at the start of the case said: "It is alleged that Potter sent a letter that said that anthrax was contained within it, addressed to the Prime Minister.
"Specialist postal workers intercepted it. Anthrax was not, in fact, found within the letter.”
Potter, who is on conditional bail, is due to be sentenced at the Old Bailey.