On Wednesday, one of Europe’s top courts will decide whether global tech giant Google has for years favored its own comparison shopping service in its search results pages over that of its rivals.

The decision will mark the first time a Google antitrust case will be decided in the General Court of the Court of Justice of the European Union since antitrust chief Margrethe Vestager started clamping down on the tech giant’s practices in the late 2000s and subsequently hit it with several billion-euro fines as part of separate investigations into its search engine, Android mobile operating system and advertising services.