The home secretary Yvette Cooper has faced intense criticism for choosing to proscribe PA, even from fellow Labour MPs like Clive Lewis, who warned the proscription “undermined democracy” and told parliament it risks “confusing dissent and terror”.

The group was proscribed as a terror organisation in July, but hundreds of people, many of pension age, took to the streets this weekend to defend them.

The government has said supporters of a "terrorist organisation will feel the full force of the law" after a protest in support of the proscribed group Palestine Action led to more than 500 arrests on Saturday.