I've been looking into this & other businesses who are refusing to close, citing a combination of Magna Carta and Freeman on the Land theory. Neither approach has any basis in law, and the owners have [largely] been misinformed by inaccurate web posts. https://www.bbc.co.uk/news/uk-england-nottinghamshire-54950773

Here's another, citing Article 61 of Magna Carta as per a social media copypasta. Real-life effects of online misinfo, hitting business owners in the pocket, putting customers at risk. https://www.thetelegraphandargus.co.uk/news/18869723.lockdown-flouting-oakenshaw-hair-salon-appears-closed-today-racking-fines/

And another one.

"Mr Walton has presented arguments to officers which appear to be rooted in the 'freeman on the land' conspiracy theory that laws only apply to someone with their consent. No such argument has ever succeeded in court." https://www.bristolpost.co.uk/news/bristol-news/locksmith-forces-entry-aron-walton-4700163