Representative George Miller, Democrat of California, said the general manager and possibly other senior staff members at the Crandall Canyon Mine near Huntington, Utah, should face a criminal inquiry. Miller, chairman of a House investigation committee, has sent a referral letter to the Department of Justice asking it to investigate whether the mine's manager, on his own or in conspiracy with others in the company, concealed facts or made false statements to federal investigators about the condition of the mine before the disaster.