Similar to the funeral of Bobby Storey last June, the family had been in prior contact with police.
District Commander Superintendent Mike Baird said at the time that the McNally family had assured police that only family members would be in attendance and that local people could “pay their respects as the funeral cortege passed, by coming out into their gardens or the front of their homes”.
Brian Arthurs, a former IRA commander, was sentenced to 25 years in jail in 1995 on explosives charges and released in 2000 under the terms of the Good Friday Agreement.
His brother Declan died, along with seven other IRA men, in an SAS ambush at Loughgall, Co Armagh, in 1987.