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About the Staff

The Inspector General is appointed by the Governor. The staff of the Office of Inspector General serves at the pleasure of the Inspector General.

In addition to the Inspector General, the Office of Inspector General is comprised of Deputy Inspectors and Investigators.




Deborah Wallace, CIG, CFE - State Inspector General
Ms. Wallace is originally from Athens, Tennessee.

Ms. Wallace has been with the office since its inception in 2003. She worked initially as a Deputy Inspector General, then Senior Deputy Inspector General, serving under three prior State Inspectors General before accepting her current responsibilities as Inspector General.

As Inspector General, Ms. Wallace directs the Office responsible for investigating allegations of fraud, waste, and abuse in the Executive Branch of state government. Ms. Wallace has twenty five years of experience conducting administrative and criminal investigations in both state and federal government and holds credentials as a Certified Inspector General (CIG) and Certified Fraud Examiner (CFE).  A retired Lieutenant Commander, she is also a twenty year veteran of the U.S. Navy, skilled in the areas of leadership, management, and administration.

Her professional experience in the federal government includes working as a Criminal Investigator with the U.S. Naval Criminal Investigative Service, Compensation Investigator with the U.S. Army Criminal Investigative Division, and Security Specialist with the U.S. Department of Energy. Ms. Wallace also worked for the State of Tennessee as an Internal Affairs Investigator and Program Manager for the Department of Corrections. She received her Bachelors in Management Science from Chaminade University and her Master’s degree in Education Administration from Troy State University.  Ms. Wallace is also a graduate of the Federal Law Enforcement Training Center (FLETC), the Tennessee Bureau of Investigations’ Special Agent Training, and both Tennessee and Georgia State Government Executive Leadership Programs.


William Donaldson, CPA, CFE - Senior Deputy Inspector General
Mr. Donaldson is originally from Twin City, Georgia.

Mr. Donaldson is a Certified Public Accountant (CPA) and a Certified Fraud Examiner (CFE) with years of experience in the anti-fraud profession conducting occupational fraud investigations ranging from financial statement fraud to employee embezzlement. Additionally, he has received advanced training in public corruption, interviews and interrogations, and a variety of other topics related to the anti-fraud profession.

Prior to accepting his position as a Deputy Inspector General in September of 2009, he worked in the Special Investigations Unit of the Georgia Department of Audits and Accounts.  Mr. Donaldson also previously worked for KPMG's forensic/advisory services division where he specialized in forensic accounting and fraud investigations. Mr. Donaldson began his career with Forensic Solutions, LLC, a professional service firm specializing in fraud detection, investigation, and prevention consulting services.  In 2007, he became a managing member of Forensic Solutions and served in that position through 2010.

Mr. Donaldson received both his Bachelors of Business Administration in Accounting and his Masters of Accounting degrees from Georgia Southern University, where he minored in fraud examination and completed an emphasis in forensic accounting, respectively.  Mr. Donaldson currently serves as a member of the Forensic Accounting Advisory Board for the School of Accountancy at Georgia Southern University.


Liana Rummel, CPA, CFE - Deputy Inspector General
Ms. Rummel is from the Pittsburgh, Pennsylvania area.

Ms. Rummel is a Georgia Southern University graduate who holds a Master of Accounting degree with a Forensic Accounting Concentration. While earning her Bachelor’s degree in Business Administration in Accounting, she minored in fraud examination. Ms. Rummel joined our office in 2012 and is a Certified Public Accountant (CPA) and a Certified Fraud Examiner (CFE).  Ms. Rummel also received advanced training in financial forensic techniques, interviews and interrogations, and public corruption.

As a Global Internal Audit Services Intern with the Corporate Home Office of Wal-Mart Stores, Inc., Ms. Rummel performed risk assessments and conducted audit testing and documentation. As an anti-fraud professional, she has conducted extensive interviews, researched proposed company policy, and presented recommendations to high level executives.  


Austin Mayberry, CPA, CFE - Investigator
Mr. Mayberry is originally from Toledo, Ohio

Mr. Mayberry is a Certified Public Accountant (CPA) and a Certified Fraud Examiner (CFE).  Prior to accepting his position as an Investigator in March 2014, he worked as a member of the National Financial Services Group for BKD, LLP, a national accounting firm, in Cincinnati, Ohio.  Mr. Mayberry specialized in external audit, internal audit outsourcing and co-sourcing, and regulatory compliance review. During his time in public accounting, Mr. Mayberry served numerous institutions ranging in asset size from thirty million to two trillion dollars spanning a diverse industry set.

Mr. Mayberry received both his Bachelors of Science in Business majoring in Accounting and his Masters of Accounting degrees from Miami University in Oxford, Ohio, where he minored in business legal studies.  


Bethan Browning - Investigator
Ms. Browning is from the Atlanta, Georgia area.

Prior to accepting her position as an Investigator, Ms. Browning worked as a Criminal Analyst for the Georgia Office of Consumer Protection, an agency with law enforcement status charged to protect consumers and businesses from unlawful, deceptive and unfair practices in the marketplace .  Ms. Browning has experience in data analytics, intelligence research, evidence seizure, and other investigative tasks.  She also volunteered at the Canton Police Department by assisting officers with case work.

Ms. Browning is a Kennesaw State University graduate who holds a Bachelor’s degree in Criminal Justice and minored in Applied Statistics.  In addition to her education and experience, Ms. Browning also received extensive investigative training on various topics related to financial investigations, criminal intelligence analysis, and computer forensics.