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to read top political analysis, gain insight from across the UK and stay up to speed with the big moments. It'll be delivered straight to your inbox every weekday.

and had “no information at this time to suggest a weapon was involved”.Mr Campbell urged against speculation and said: "I’d like to remind the public that this is an active investigation, and advise them to refrain from speculating or posting anything on social media that could prejudice the right to a fair trial."

Anyone with information can also contact Crimestoppers.A World War Two era letter discovered in a tin of lozenges has been donated to a West Sussex museum.Littlehampton Museum said it was honoured to receive the historic item, which it called a "tangible reminder" of the town's wartime history and spirit of its people.

The "heartfelt" letter, dated May 1940, was found in a forgotten air raid shelter in Littlehampton High Street during demolition work behind Acres the Bakers in 1971, the museum added."The museum will ensure it is carefully preserved so that future generations can connect with this powerful piece of local and national history," Freddie Tandy, chair of Littlehampton Town Council's community resources committee said.

"We are very grateful that the donor has treasured this letter and kept it safe for over 54 years," he added.

Researchers at the museum identified the letter's authors as Henry R. Holmes and Leslie W. Voke, neighbours and local businessmen.I don’t think I’ll be switching – I can’t help but like that real coffee is grown by people somewhere – but beanless coffee certainly left me thinking I should investigate the sustainability and ethics of my conventional brew.

Perhaps that does not sound like much. But in the US alone, where 767 million paperback books were sold in 2023, this is equivalent to the electricity use of more than 150,000 homes for a year.Forest loss, paper production and printing, and transport of books are generally the largest contributors to the carbon emissions of printed books.

So, using less wood fibre, and shipping lighter loads, are important ways to reduce the emissions of print books (as well as the costs of producing them).One simple method is reducing the thickness of the paper. Some publishers are turning to subtly thinner paper. There are limits to this: the most lightweight paper may be less durable. And for certain types of books, including art books, there’s a preference for heavier paper.