Judges Lord Justice Singh and Mrs Justice Farbey said that while they could understand why the application was not made until the report was published, it should have been made sooner.

Mr Roussos said the families had to “wait for all these reports to find out the truth, and now we know the truth, we don’t have time”.

“In the months leading up to the tribunal, MI5 (and) their legal team did everything they could to stop it,” he said.

“For MI5 to come back and say we can’t take this any further because you don’t have time, that’s a pathetic excuse for not hearing our side and hearing the evidence.”

The judge also said that if the claims had been allowed to go ahead, MI5 should have redirected resources to the proceedings rather than their “core responsibilities” of stopping future attacks.

“The legal action is being dealt with by the legal team, not MI5 agents,” Mr Roussos said.

“You look at every court (building) and it says justice at the top, that’s not justice, that’s hiding.

“My family personally does not feel that justice has been done here.”

In a statement, a Home Office spokesman said: “Our thoughts continue to be with all those who have lost loved ones and suffered such terrible harm as a result of the Manchester Arena terror attack.” .