Justice Department lawyers who handle extradition requests are arguing that a federal judge’s ruling in Washington, D.C., that compels the government to search for and turn over favorable evidence to lawyers for a fugitive creates damaging precedent that hurts foreign relations.

DOJ lawyers handling the extradition of Zhenli Ye Gon, who had been charged in the United States in a drug trafficking conspiracy, on Tuesday in court criticized a ruling in January by Magistrate John Facciola of the U.S. District Court for the District of Columbia.