Dr. Schaff has, since 1999, worked as a forensic chemist in the Chemistry Unit of the Federal Bureau of Investigation Laboratory Division. There he conducts a wide variety of chemical analyses supporting toxicological investigations of matters that come before the FBI. These cases include suspicious deaths on federal lands and of U.S. citizens overseas, public corruption allegations, support of coroners' inquests in U.S. possessions and territories, and support of local law enforcement criminal inquiries, including drug-facilitated sexual assaults, poisonings, and allegations of product tampering. Prior to joining the FBI, Dr. Schaff worked for two years at an International Olympic Committee accredited drug testing lab associated with the Indiana University Medical Center. There he conducted fundamental research on mass spectrometry of anabolic-androgenic steroids and worked on development and validation of new analytical methods for exogenous steroid identification in urine.