Scottish police urged fans to not bring Palestinian flags, threatening them with arrest. Under Scottish law anyone found guilty of inciting “hatred against a group of persons based on their membership (or presumed membership) of a group,” could be detained. The Union of European Football Associations (UEFA) forbids political statement displays at football matches. Prior to showdown, fans had been warned that any political protest inside the stadium would result in repercussions from the governing authority, which could lead to fines or even Celtic Park stadium closure. UEFA fined Celtic two years ago when fans waved Palestinian flags at a game against Iceland’s KR Reykjavik. UEFA’s Control, Ethics and Disciplinary Committee took action based on Article 16 (2) (e), which forbids political, ideological and religious messages at sports events.
The Celtic fans went ahead to display Palestinian flags at the match.