"My client is deeply concerned at the proposed, grossly late intervention on the part of the Office of First Minister and Deputy First Minister," her lawyer told the court.

"We say it's highly improper and unorthodox, effectively OFMDFM are seeking to resist the grant of leave against the Department of Justice."

"improper and unorthodox" is the polite legal term.
DUP/Shinners have a lot going on that is improper and unorthodox.