 At the end of April 2012, a controversy emerged over legal representation.The law firm Quinn Emanuel, retained by Megaupload to argue for the retention of Megaupload's data, said in a motion filed to the court that there was a concerted effort by the United States Department of Justice to deny Megaupload fair legal representation.In the brief, Quinn Emanuel alleged that several law firms dropped out of the case after the DoJ informed them of potential conflicts of interest, arguing that they wanted to call clients of the firms as witnesses.