A lawyer for the Orange Order member bringing the case told the court about the contents of Police Service of Northern Ireland (PSNI) intelligence material. Reading from it, he stated it was "almost certain" that dissidents were among protesters and it was "possible" they had access to firearms. It is "possible" the guns could have been used to attack police, he added.
The lawyer further stated that petrol bombs may have been used in disorder which would have followed police removing protesters. "There is reliable intelligence indicating that mainstream republicans are concerned about their ability to prevent disorder or control dissident republicans," he added. He referenced there being nine intelligence documents, including one called "feelings of PIRA".
A lawyer for Secretary of State Sir Chris Bryant said the PSNI assessment was that all "lawful and proportionate options" to facilitate the parade had been "exhausted". Any attempt to police it "would have involved substantial public order intervention". He said Boutcher believed this would have carried an "unacceptable risk" of serious and prolonged disorder, with "a wider contagion effect".
The secretary of state's intervention ended a two-week stand-off after the parade route on Garvaghy Road was blocked by protesters. The chief constable, Jon Boutcher, has said the parade could have caused serious disorder, with "catastrophic" consequences for Stormont and the peace process.
The applicant has alleged Boutcher had taken into account "wholly political" considerations, which were "immaterial" to policing decisions. It is claimed these invalidated his advice and "infected" the secretary of state's decision and Sir Chris showed "scatter gun decision-making" and had "misdirected himself". It is also alleged he made "a fundamental error" in giving equal weight to a lawful parade and an unlawful protest.
The hearing continues. Mr Justice Scoffield told the court that he would reach a "swift" decision either later this week or next.
The Drumcree dispute has a long history. Earlier this year, the Parades Commission banned the parade, a move reflecting every decision since 1998. Following a legal challenge, the High Court quashed that decision in August. The commission then granted a fresh application on September 25, albeit with restrictions. Last-minute legal challenges followed, including an injunction from residents that was overturned by the Court of Appeal. The parade could not proceed due to protests, leading to a nearly two-week stand-off. Secretary of State Sir Chris Bryant stepped in on 10 October, citing the "best interests of peace". The Orange Order then appealed for a judicial review against the ban.