Lawyers told the Court of Appeal that the authorisation of the Orange Order's Drumcree parade rested on a legally defective assessment of the threat that public disorder posed. Lawyers acting on behalf of Garvaghy Road residents argued before the Parades Commission that police intelligence regarding the potential for disorder along the contested Portadown route in Co Armagh had not been properly assessed.

A decision on the organisation's legal challenge to a ruling — one that would permit an Orange Order parade through the predominantly nationalist area for the first time in close to three decades — was held over by the court. With a broader dispute over the parade route still unresolved, Lady Chief Justice Dame Siobhan Keegan indicated that a ruling would be delivered without delay.

Authorisation from the Parades Commission allowed the Portadown District Lodge to proceed with its homeward procession from Drumcree Church, scheduled to set off at 8am on Sunday, 27 September. Organisers attached several requirements to the event, among them a cap of 35 attendees and a push to begin proceedings earlier in the day.

Over that weekend, the Garvaghy Road Residents Coalition brought an urgent application before the High Court seeking to overturn the Commission's determination. At the first of three separate hearings, a judge placed a temporary injunction on the march, a ruling that the Court of Appeal subsequently set aside. A second High Court judge, ruling in the early hours of that Sunday morning, turned down the residents' judicial review application.

The judge found no merit in the argument that the Commission had acted unlawfully by overlooking the claimants' human rights or by applying a flawed methodology when evaluating the prospect of public disorder. A crowd numbering in the hundreds positioned itself across the route, bringing the march to a halt. Police intervened to stop multiple subsequent attempts by members of the Orange Order to march along the disputed road.

Separate meetings that Northern Ireland Secretary Sir Chris Bryant convened with each party to the dispute have so far left the underlying impasse unresolved. On Monday, the GRRC brought the matter back before the courts, seeking to have Mr Justice Humphreys' ruling set aside.

Four grounds of challenge were put before the court by Denise Kiley KC, who acts for Brendan Mac Cionnaith in his capacity as the group's chairman. Her argument held that the Commission posed the wrong question regarding disorder and applied a flawed framework when evaluating the police conduct. Her argument further held that the ruling failed to set out adequate reasoning behind its conclusions on the most contentious points, and that it placed a burden on the residents' rights to private and family life under Article 8 of the European Convention on Human Rights that went beyond what was proportionate.

One argument put forward held that approving the parade while simultaneously attaching conditions to it amounted to a contradiction that could not be reconciled. Kiley put forward the position that the Parades Commission had reached a flawed judgement when weighing up the likelihood of disorder along the route.

Counsel informed Dame Siobhan — who heard the appeal alongside Lord Justice Colton and Lady Justice McBride — that the applicable legal standard turned on whether public disorder might arise. Questions about whether the Commission applied the correct legal framework to the police assessment — and whether PSNI information was faithfully represented in its ruling — have been raised.

Notwithstanding intelligence that pointed to no specific threat of disorder being planned, senior officers had nonetheless been drawing up contingency arrangements covering the full range of outcomes — from orderly to confrontational — that the parading application might produce. Ms Kiley argued that the Parades Commission had moved beyond simply rehearsing the police position and had instead formed its own independent assessment, substituting the police's statement that no particular intelligence existed for a conclusion of its own, when in her view the underlying intelligence picture was more layered and open-ended, with officers preparing for every possible outcome rather than a single anticipated one. She maintained that the Commission was obliged to arrive at a proper understanding of what the information it received actually conveyed.

With the march just two days away, the order imposed a number of conditions — including a move to an earlier start time and a ceiling on attendance that fell below the 60-person figure Portadown District Lodge had requested. Restrictions on members of the Orange Order walking that stretch of road as part of their yearly July procession returning from a church service have been upheld continuously since 1998.

The matter drew considerable attention at the period, with unrest and violence linked to loyalist groups reported across various areas of Northern Ireland. That August, a procedural misstep in the handling of the Orange Order's yearly parade application was formally recognised by the Commission. Portadown District's renewed application was treated under different restrictions than before, a move the GRRC argued fell outside proper legal procedure.

The reasoning set out in the determination was placed before the court as inadequate on its face, internally at odds with itself, and unable to engage with the central questions at issue — with counsel Ms Kiley noting that the absence of any explanation was conspicuous given that the restrictions in question had been in place since 1998, and that the same basis had underpinned every decision made across a continuous 28-year period.

Ms Kiley put forward the position that the Orange Order had no obligation to travel along the Garvaghy Road on the homeward portion of the march — though the broader question of why the situation had shifted, and at what point that shift had taken place, drew no response from those asked. Her position was that any interference with the residents' Article 8 rights would be unjustifiable in the absence of necessity. Counsel advanced an additional ground of challenge, arguing that the Article 8 privacy entitlements of local residents had not been adequately weighed against the Orange Order's claim to freedom of assembly under Article 11.

Representing the Parades Commission, Tony McGleenan KC pushed back against the argument that a legal misdirection had occurred on the question of disorder, calling the assertion unfounded. A note of caution was raised about drawing conclusions from individual passages pulled out of the 31-paragraph determination at the heart of the proceedings, rather than reading the document as a whole.

Counsel told the court that the Commission had received a police briefing and accurately reflected the resulting assessment that no risk of violence had been identified, adding that no legal error had occurred, that the body had recognised the prospect of disorder and examined it properly, and that this represented an expert judgment by an institution Parliament had established for precisely that purpose. Turning to the allegation that the Commission had not adequately explained its shift in position regarding the march, counsel pointed to distinctions in the anticipated number of participants, the use of musical accompaniment, and the presence of flags and emblems.

Organisers drew attention to the pre-dawn departure time and a projected march duration of around 14 minutes, while McGleenan argued that events from the 1990s belonged to an entirely different category of experience. The three appeal judges additionally heard submissions on the state's duty to uphold the Orange Order's Convention rights covering freedom of assembly and association, with counsel contending that the Parades Commission's reading of the relevant provisions was sound and that a legal misunderstanding of what constitutes disorder had run through the proceedings from the outset.

Disagreement with a ruling does not, by itself, point to any absence of rational basis. Barrister Richard McConkey KC, acting on behalf of one of the local Orangemen, put it to the court that no valid grounds for identifying a legal error existed and that the appeal should therefore be set aside. McConkey told the court that his client had complied with every ruling handed down by the Commission and would honour whatever outcome the legal proceedings ultimately produced.

After closing submissions, the Lady Chief Justice reserved her ruling and indicated that the bench aimed to deliver its decision within a reasonable timeframe.