The Department of Justice (DOJ) and Google have concluded two weeks of hearings over how to address the tech giant’s illegal monopoly in the online advertising market, marking a major moment in one of the most significant antitrust battles in decades. The case, held in the U.S. District Court for the Eastern District of Virginia, follows an April ruling by Judge Leonie M. Brinkema that found Google had unlawfully monopolized publisher tools and ad transaction software.