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Tom Avery

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Tom Avery has been an investigator with the Orange County Sheriff’s Department, CA, for over 10 years. Tom is currently assigned to the Technology Crimes Unit. He is a Technology Crime trainer for the California Department of Justice. He is also a co-author for a book entitled Homeland Security Principles, Planning and Procedures.


Homeland Security

This text introduces a broad, in-depth look at security planning and procedures. Students will learn to develop skills in interviewing and interrogation techniques, intelligence gathering, surveillances, perimeter and crime scene security, criminal evidence preservation and collection, and principles of crowd and riot control. Additional topics include threat assessment and response, and facility security and vulnerabilities. This text also helps students develop skills in substance abuse recognition, theft, sabotage and espionage. It also covers techniques for dealing with computer security, electronic criminal investigations, firewalls and security software as well as crime prevention techniques. Additional topics include crime prevention, security access control, and security force management.


This textbook is appropriate for criminal justice, criminal investigation, and homeland security programs. It is also suited for programs in emergency management, corporate security, psychology, emergency medical services and healthcare, police academy programs, and continuing professional development.

Technology Crimes and Forensics

This book is designed to give the student an understanding of technology-based crimes as they apply to modern criminal acts such as identity theft, extortion, intellectual property crimes, fraud, Internet pornography, and online gambling. Students will examine issues of evidence involving crime scene management, chain of custody issues, accepted investigative practices, constitutional issues and matters of jurisdiction. Also covers technical communication skills involving depositions, testimony and technical report writing. The text also compares and contrasts the roles and responsibilities of local, state, and federal agencies responsible for investigating technology-based crimes.

About the Orange County Sheriff’s Department:

The history of Orange County goes back further than the past 100 years and is a tribute to the adventurous spirit, personal drive and tremendous courage of the early explorers and settlers who's vision and fortitude made cities where there were only dreams. In any society, there are always challenges, but the pioneer men and women who forged Orange County out of a barren land had the courage to overcome the obstacles that stood in their path.


It wasn’t until California became a state in 1850 that formal law enforcement institutions, based on the common law of England, became established. Even then, Southern California was a lawless society until the 1870s, plagued by rustlers, highwaymen, murderers, robbers and swindlers. Many made their headquarters in Los Angeles, blatantly defying the law and its traditional keepers-sheriff, jailor, judge and jury. Impromptu, poorly organized vigilante groups supplemented formal law enforcement officials, often taking the law into their own hands, but even these groups were ineffective.


The growth of communities, the increase in the number and proximity of small farms and the improvement of both education and communication systems finally brought lawlessness under control. Each formal community had its marshal, its constable and its judge and when Orange County was formed in 1889, its citizens had a sheriff, directly responsible to them, and a new set of institutions right in their own backyard.


The Orange County Sheriff’s Department today is a highly professional organization, which not only continues in its traditional role of crime suppression, but also has expanded into the area of crime prevention. At the Orange County Sheriff’s Department you can see the spirit of adventure and the same courage as the early settler had.


Orange County is a place where dreams have become a reality



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