Mr Gillies has served more than 28 years with the Federal Bureau of Investigation (FBI). Currently he is in charge of the FBI office in Miami which covers South Florida, the Caribbean, Central and South America, and Mexico. Prior to that he was in charge of the FBI office in St. Louis; Section Chief of the Violent Crimes Section at FBIHQ responsible for violent crimes, crimes against children, crimes in Indian reservations, transportation crimes, crimes on the high seas; and special jurisdiction crimes; Assistant Special Agent in Charge of the FBI office in Detroit where he oversaw white collar crime (WCC), public corruption, cyber crime, counter-intelligence, civil rights, and administrative programs; Chief of the Financial Institution Fraud Unit at FBIHQ where he coordinated, developed, directed, and supervised matters such as bank / cheque / credit card fraud, bank failures, identity theft, cyber banking, and mortgage loan fraud.

Mr Gillies has investigated all types of WCC including financial institution fraud, investment schemes, and intellectual property rights. He also investigated pubic corruption of judges, legislators, law enforcement officers, and state and local public officials. He was the WCC Supervisor and WCC Program Coordinator for the FBI office in Honolulu. He also supervised the Civil Rights Program and the National Infrastructure Protection Center / Computer Crimes Squad. He has presented and taught WCC, ethics and public corruption in various places.

Prior to the FBI, he worked as a Public Accountant. He received Bachelor of Science degrees in Accounting and Business Administration from Illinois State University in 1982.