A ban against Palestine Action has come into force, designating it as a terror group after a late-night legal bid to delay it failed.
It makes membership of, or support for, the direct action group a criminal offence punishable by up to 14 years in prison.
The move to ban the organisation was announced after two Voyager aircraft were damaged at RAF Brize Norton in Oxfordshire on June 20, an incident claimed by Palestine Action, which police said caused around ÂŁ7 million worth of damage.
In response to the ban, a group of around 20 people are set to gather and sit in front of the Gandhi statue in Londonâs Parliament Square on Saturday afternoon, according to campaign group Defend Our Juries.
They will hold signs saying: âI oppose genocide. I support Palestine Action.â
The newly proscribed group lost a late-night Court of Appeal challenge on Friday to temporarily stop it being banned, less than two hours before the move came into force at midnight.
Earlier that day Huda Ammori, the groupâs co-founder, unsuccessfully asked the High Court to temporarily block the Government from designating the group as a terrorist organisation, before a potential legal challenge against the decision to proscribe it under the Terrorism Act 2000.
Home Secretary Yvette Cooper announced plans to proscribe Palestine Action on June 23, stating that the vandalism of the two planes was âdisgracefulâ and that the group had a âlong history of unacceptable criminal damageâ.
MPs in the Commons voted 385 to 26, majority 359, in favour of proscribing the group on Wednesday, before the House of Lords backed the move without a vote on Thursday.
Four people â Amy Gardiner-Gibson, 29, Jony Cink, 24, Daniel Jeronymides-Norie, 36, and Lewis Chiaramello, 22 â have all been charged in connection with the incident.
They appeared at Westminster Magistratesâ Court on Thursday after being charged with conspiracy to enter a prohibited place knowingly for a purpose prejudicial to the safety or interests of the United Kingdom, and conspiracy to commit criminal damage, under the Criminal Law Act 1977.
Lawyers for Ms Ammori took her case to the Court of Appeal on Friday evening, and in a decision given at around 10.30pm, refused to grant the temporary block.
Raza Husain KC, for Ms Ammori, made a bid to have the case certified as a âpoint of general public importanceâ to allow a Supreme Court bid, but the Lady Chief Justice Baroness Carr said they would not get to the Supreme Court before midnight.
The judge added that any application should be made before 4pm on Monday and refused a bid to pause the ban coming into effect pending any Supreme Court bid.
In an 11-page written judgment, Baroness Carr, Lord Justice Lewis and Lord Justice Edis said: âThe role of the court is simply to interpret and apply the law.
âThe merits of the underlying decision to proscribe a particular group is not a matter for the courtâŚSimilarly, it is not a matter for this court to express any views on whether or not the allegations or claims made by Palestine Action are right or wrong.â
They also said: âPeople may only be prosecuted and punished for acts they engaged in after the proscription came into force.â
In his decision refusing the temporary block, High Court judge Mr Justice Chamberlain said: âI have concluded that the harm which would ensue if interim relief is refused but the claim later succeeds is insufficient to outweigh the strong public interest in maintaining the order in force.â
Blinne Ni Ghralaigh KC, for Ms Ammori, told the Court of Appeal that the judge wrongly decided the balance between the interests of her client and the Home Office when deciding whether to make the temporary block.
She said: âThe balance of convenience on the evidence before him, in our respectful submission, fell in favour of the claimant having regard to all of the evidence, including the chilling effect on free speech, the fact that people would be criminalised and criminalised as terrorists for engaging in protest that was not violent, for the simple fact that they were associated with Palestine Action.â
She also told the Court of Appeal that Mr Justice Chamberlain âfailed properly to considerâ that banning the group âwould cause irreparable harmâ.
Ms Ni Ghralaigh said: âThere was significant evidence before him to demonstrate the chilling effect of the order because it was insufficiently clear.â
She continued that the ban would mean âa vast number of individuals who wished to continue protesting would fall foul of the proscription regime due to its lack of clarityâ.
Ben Watson KC, for the Home Office, told the Court of Appeal that Mr Justice Chamberlain gave a âdetailed and careful judgmentâ and that the judge was âaliveâ to the possible impacts of the ban, including the potential âchilling effectâ on free speech.
