Lawyers representing the co-founder of Palestine Action said the ban on the direct-action group had disproportionately impacted Palestinians in Britain campaigning against Israel’s actions in Gaza.

Speaking at the Court of Appeal on Wednesday, Raza Husain KC, who is representing Huda Ammori, said the ban had created a “culture of fear” among British Palestinians and those advocating for Palestinian rights.

“The proscription of PA is impacting particularly severely on Palestinians in Britain, whose conduct and expression have been chilled and criminalised at precisely the moment when their communities in Palestine are being annihilated,” Husain said in written statements.

The lawyer quoted testimony given to the court by Dr Aimee Shalan, chair of the British Palestinian Committee, on the impact that proscription had on Palestinians in Britain.

“Shalan explained that members of the Palestinian community in Britain involved in campaigning and advocacy work routinely faced legal threats, including allegations of being terrorists or terrorist sympathisers. And that's before proscription," said Husain.