Criminal investigator, $7,220 to $10,250 a year (grades GS-9 through GS-12) for duty with Food and Drug Administration, Department of Health, Education, and Welfare and other Federal agencies, apply to Executive Secretary, Board of U.S. Civil Service Examiners, Food and Drug Administration, Department of Health, Education, and Welfare, Washington, D.C, 20204, announcement 383B.