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The Inspector General has the authority to appoint all staff members, and all OIG staff serves at the will of the Inspector General.The OIG strives to reflect the diversity of our great community. The OIG staff is 44% female, 18% black, 29% Hispanic and 6% Asian. The Inspector General is committed to recruiting qualified employees who reflect the makeup of Miami-Dade County.

OIG Staff


Mary Cagle

Mary T. Cagle
Inspector General

Mary Cagle’s appointment to the position of Inspector General was confirmed by a unanimous vote of the Miami-Dade Board of County Commissioners on December 17, 2013. She began her four-year term on February 3, 2014. She serves as the Inspector General for Miami-Dade County and the Miami-Dade County School District.

Ms. Cagle’s career includes many years of leadership and distinguished service at the Office of the State Attorney for the Eleventh Judicial Circuit. Her twenty-two year career focused on the litigation and management of major investigations and prosecutions related to Public Corruption and Organized Crime. While serving as the Chief Assistant to the State Attorney she supervised Special Prosecutions, including litigation involving corruption, narcotics, gangs, economic crime, organized crime, racketeering, and money laundering. Ms. Cagle also supervised a large staff of felony attorneys; engaged in high profile communications with law enforcement, the judiciary, and the community; and supervised all cases involving electronic surveillance.

In 2004, Ms. Cagle was recruited to be the Chief Executive Officer for CHARLEE Homes for Children. Ms. Cagle transitioned CHARLEE to a full case management foster care agency, as the State was privatizing the foster care system in Florida. CHARLEE, a non-profit organization, had a budget of $17 million dollars and a staff of 175 dedicated professionals serving 1,000 abused, neglected and abandoned children.

From September 2007 to December 2013, Ms. Cagle was the Statewide Director of Children’s Legal Services for the Department of Children and Families. She was tapped by Bob Butterworth, Secretary of the Department, to raise the quality of legal services. She provided leadership and oversight to a staff of 450 individuals, including 250 attorneys, and managed a $40 million dollar budget. Her responsibilities included providing legal advice to investigators and managing all of the litigation in Florida’s dependency system.

Ms. Cagle received her Juris Doctor degree from Thomas M. Cooley Law School in Lansing, Michigan and attained her Bachelor of Arts Degree in History from Calvin College in Grand Rapids, Michigan. Ms. Cagle is a member of the Michigan and Florida Bar Associations.

Felix Jimenez

Felix Jimenez
Assistant Inspector General, Investigations

Felix Jimenez is the Assistant Inspector General for Investigations. He has been with the OIG since February 2009. He supervises a staff of 17, including investigators and analysts.

Mr. Jimenez is a 28-year veteran of the Miami-Dade Police Department, where he served ten years supervising homicide investigations and was later tasked with developing the department’s Public Corruption Investigations Unit. He has taught at law enforcement agencies throughout the United States, including the South Florida Metropolitan Police Institute and at the FBI Academy, in the areas of Public Corruption Investigation and Violent Crime Investigation.

As a supervisor in the Homicide Bureau, Mr. Jimenez participated in over 500 death investigations and was directly involved in numerous high profile investigations, such as the Tamiami Strangler, the Jimmy Ryce case, ValuJet 592, and the Griga/Furton murders. In the infamous Griga/Furton case, two Hungarian nationals were kidnapped, murdered, and their bodies dismembered, placed in barrels, and disposed of in the Everglades. The 2013 movie Pain and Gain was based on the Griga/Furton case.

While in the Public Corruption Unit, Mr. Jimenez supervised investigations involving government employees, contractors, and elected officials. He was later selected to supervise a task force consisting of FBI, state and local law enforcement agents. Mr. Jimenez was instrumental in several criminal investigations revolving around a $5 billion capital improvement project at Miami International Airport. These multiple cases resulted in the arrest and conviction of the Aviation Department’s assistant director, its telecommunications manager, several corporate officers, and an elected official. Mr. Jimenez also supervised a multi-agency investigation into a drug trafficking organization operating out of the Turner Guilford Knight Correctional Facility that resulted in the arrests and convictions of 43 individuals, including 14 corrections officers.

Mr. Jimenez received his Bachelor of Public Administration degree from Barry University in Miami Shores, Florida. He received his certification as a Certified Inspector General Investigator in 2011.

Patra Liu

Patra Liu
Assistant Inspector General, Audit
and Contract Oversight
Patra Liu is the Assistant Inspector General for Audits and Contract Oversight. She manages an Audit staff of ten and supervises two essential administrative support positions: special projects/IT and bookkeeping. Ms. Liu also serves as the OIG’s Legal Counsel. As an integral part of the OIG since 2000, almost from its inception, Ms. Liu brings her extensive knowledge of County government and superb writing and analytical skills to the Office.

Ms. Liu began her legal career as a criminal prosecutor with the Miami-Dade State Attorney’s Office. After working her way through various assignments within the State Attorney’s Office, she was last assigned to the Economic Crimes Unit to investigate and prosecute cases involving health care fraud, insurance fraud, embezzlement, money laundering, and other schemes to defraud. Directly before joining the OIG, Ms. Liu was a Florida Assistant Attorney General in the Medicaid Fraud Control Unit. There, she served as the Miami Bureau’s in-house legal advisor, coordinating legal actions with Federal prosecutors and handling civil cases involving the False Claims Act, Florida’s civil theft statute, applications for other injunctive relief involving the proceeds of Medicaid fraud, and forfeiture actions.

Ms. Liu received her Juris Doctor degree from the University of Washington in Seattle, Washington. She has a Bachelor of Arts degree in History from the same institution. She is a member of the Florida and Washington State Bar Associations. Ms. Liu became a Certified Inspector General in 2003 and earned the designation of Certified Inspector General Auditor in 2009. Both certifications are accorded by the Association of Inspectors General (AIG), a national organization. Ms. Liu is an active member of the AIG, and has also served on its Board of Directors since 2006. Ms. Liu is also a Board member of the Florida Chapter of the AIG.



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