Hundreds of high-ranking company officials have been convicted in corporate fraud schemes since 2002, the U.S. Justice Department said Tuesday — a day after a federal judge threw out charges in one of the largest criminal tax cases in U.S. history.

Attorney General Alberto Gonzales called the U.S. District Court ruling, in favor of 13 former KPMG employees, disappointing and said he was “quite confident” the government would appeal.