Gwendolen Morgan, of law firm Bindmans, representing Mr Miranda, said outside court that the Home Office and police had made "sweeping and vague assertions about national security".
She said Mr Miranda "does not accept the assertions they have made".
He "looks forward to the opportunity to have the Government's actions and assertions fully scrutinised" at the hearing in October, she added.
More top news
More than 20 people are still unaccounted for after a huge blaze broke out at the 'rave cave' club night.
President Michel Temer arrived in Chapeco to oversee the remaining repatriation of victims of the Colombia plane crash.
Most parts will be dry this afternoon, although there are a few showers out to the western fringes of Britain.