Meet the Team
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Park Dietz, M.D., M.P.H., Ph.D.
PRESIDENT / FOUNDER
Dr. Dietz is the founder and head of both the forensic consulting firm of Park Dietz & Associates and the first company devoted to workplace misconduct mitigation, Threat Assessment Group, both of which are headquartered in Newport Beach, California. In 2009, Dr. Dietz was named one of the “Top 25 Most Influential People in the Security Industry” by Security magazine. In 2010, he was awarded the “Seymour Pollack Award for Distinguished Contributions to Education in Forensic Psychiatry” by the American Academy of Psychiatry and the Law. In 2014, Biography.com listed Dr. Dietz among the 10 most famous psychiatrists in history.
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Aaron Cohen
VP, BUSINESS DEVELOPMENT
With over a decade of experience at TAG, Aaron has played a key role in advancing workplace violence prevention and threat assessment programs for organizations across multiple industries. He earned a double degree in Biology and Psychology from NYU, providing a strong analytical foundation for understanding behavioral risk and threat dynamics. Prior to joining TAG, Aaron worked in media and marketing in New York City, developing expertise in strategic communications. At TAG, he collaborates with corporate leaders, security teams, and HR professionals to implement proactive threat management strategies that help organizations build safer, more resilient workplaces.
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Cathy Chambers
DIRECTOR OF OPERATIONS
With over 5 years at TAG and a 40-year career spanning corporate, education, and public relations, Cathy has been instrumental in building and maintaining strong client relationships and ensuring the seamless delivery of TAG's services. Her background in marketing, account management, and human resources gives her a versatile skill set to direct TAG's day-to-day operations. That breadth of experience translates directly to helping organizations navigate the complex challenges of workplace violence prevention with ease.
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Sheila Azad
OPERATIONS MANAGER
Sheila Azad draws on over 5 years of operational experience, including large-scale retail management, in her role at TAG. With a strong foundation in operations, policy analysis, client relations, and legislative affairs, Sheila supports TAG's work in helping organizations prevent workplace violence. She currently holds a Bachelor of Arts in Political Science and will complete her Master of Public Policy, with a focus in labor relations, at the University of California, Irvine in June 2026
Our Experts
We are an interdisciplinary team. Our expertise with threats, dangerous behavior, and violence is comprehensive and unparalleled.
Drawn from the top ranks of forensic psychiatry, forensic psychology, and the FBI's Behavioral Science Unit, TAG experts have guided the management of thousands of high-risk cases. Courtroom experience in thousands of trials significantly informs our approach to training and case management.
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Stephen Carter, M.A., M.B.A.
FBI, Ret.
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Leanne Whitwell
Former Special Agent
US Capitol Police -

Ronald P. Walker, M.A.
FBI, Ret.
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Jana Monroe
FBI, Ret.
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Rob Ambrosini, Psy.D.
FBI, ret.
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Lauren Ambrozic, M.A.
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Nicholas Scurich, Ph.D.
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Erin Nelson, Psy.D.
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Blake McConnell
FBI, ret.
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Bill Irwin
FBI, Ret.
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April Gould, M.A., M.P.H. PhD
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Daniel A. Martell, Ph.D.
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Gregg McCrary, M.A.
FBI, Ret.
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Joel Dvoskin, Ph.D.
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Ray S. Mey
FBI, Ret.
— Kevin Corliss, Corporate Employment Counsel, Corning Inc.
“Put this at the top of your
training list.”
— Tom Donnelly, Manager, Investigations, TRW
“Worth the cost; best training available on this subject.”
TAG Forensic Evaluators
Throughout the US and Canada, TAG's extended network of leading forensic psychiatrists and psychologists evaluates employees for violence risk, fitness for duty, disability, or treatment options when indicated.