Organisers say the demonstration will involve placards reading 'I oppose genocide. I support Palestine Action.' Campign group Defend Our Juries said a parallel action will take place outside the US consulate in Edinburg.
The timing is calculated. On November 4 and 5, the UK Supreme Court will hear an appeal by Palestine Action co-founder Huda Ammori against the proscription, which was upheld by the Court of Appeal in June after a High Court ruling found it unlawful. The government proscribed Palestine Action as a 'terrorist' organisation in July 2025, follwing an incident in which activists spray-painted Trump's Turnberry golf course in Scotland.
More than 3,850 people have been arrested for publicy backing Palestine Action since the ban, Defend Our Juries said. Those arrested include Massive Attack's Rob del Naja, 94-year-old human rights barrister Margaret Owen, former government adviser Jonathan Porritt and the Reverend Sue Parfitt.
Among those due to attend the latest action is Teresa, a former teacher who has been arrested multiple times. 'It a badge of honour, to be able to do this for Gaza,' she told Al Jazeera.
This week, actors Paul Mescal, Jessie Buckley and Susan Sarandon, along with broadcaster Gary Lineker, signed a letter in the New Statesman urging Prime Minister Andy Burnham's government to drop the 'draconian' legislation.
The government argues that Palestine Action's campign of break-ins and criminal damage at defence sites, including those linked to Israeli arms maker Elbit Systems, meets the legal threshold for proscription. The Court of Appeal described it as a covert organisation operating through secret cells.
Defend Our Juries insisted its own protests are entirely peaceful. 'This mass defiance and the mass arrests expected to follw will lay bare the fundamental rights to free expression at stake in the Supreme Court hearing just days later,' a spokeperson said.