Abu Zubaydah's lawyers, including Joseph Margulies and George Brent Mickum IV, filed a lawsuit in July 2008 challenging his detention at Guantanamo Bay detention camps after the "Boumediene v. Bush" ruling. As of 2015, the judge overseeing the case, Richard W. Roberts, has failed to rule on any motions related to the case, even the preliminary ones. This has led Zubaydah's lawyers to file motion asking Judge Roberts to recuse himself for nonfeasance in January 2015. On March 16, 2016, Roberts retired early from the federal bench, citing unspecified health issues.