About the Fredricksons

Darin D. Fredrickson, CPP is co-author of several criminal justice field books including the Fundamentals of Physical Surveillance, 3rd edition. He is the managing partner of Team Guardian, LLC a private investigation firm based in Phoenix, Arizona, which specializes in physical and technical surveillance solutions, and provides surveillance training for government and civilian investigators.

Darin Fredrickson retired from the Phoenix Police Department in 2012 after 20 years of service. He served with the department's Major Offender Bureau, assigned to the Repeat Offender Program's (ROP) Surveillance Team. He is an accomplished surveillant professional with over two decades of experience in thousands of physical and technical surveillance operations involving private, corporate, and criminal cases including homicide, drug and human trafficking, Organized Retail Crime (ORC), burglary, robbery, auto theft, and fraud.

After retiring from Phoenix PD, Darin pursued a career in the retail industry investigating ORC until 2020. In 2009, the Arizona Retailers Association (ARA) awarded Darin Fredrickson the Law Enforcement Officer of the Year for his dedication towards combating ORC. Darin is a board member of the Arizona Organized Retail Crime Association (AZORCA), which is comprised of law enforcement, retail investigators, and prosecutors involved in sharing information and combating ORC activity within the state of Arizona.

Darin holds two Master of Education degrees in Education from Arizona universities and has coauthored several books in the criminal justice field. His books are available from Charles C. Thomas, Publisher. He is a Certified Protection Professional (CPP), and board certified in Security Management from ASIS, the world's largest security association.

Mary Fredrickson, CFT is a security professional, and licensed private investigator who has over a decade of corporate and retail security, public and private investigation, and covert surveillance teaching experience.

​Darin and Mary are parents to a dozen kiddos and have been married for nearly 32 years. They are both passionate fitness enthusiasts and together home-school five children of their pack. They love to hike, play with guns, and travel. They pretty much do everything together.

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