About the Authors

Dennis Cole
Captain Dennis Cole retired from the San Diego County Sheriff’s Department in 2002 after a 29-year career. He was assigned to the Sheriff’s Special Dennis PictureEnforcement Detail/SWAT team for seventeen years, including four years as the SWAT Commander. Dennis has been a POST Master chemical agent instructor since 1980 and serves on the POST chemical agents advisory committee. Captain Cole is considered a subject matter expert by POST in the field of non-lethal chemical agents, and has attended numerous instructor’s schools, including the Federal Laboratories Chemical Weapons and Chemical Agent Instructor schools.


Prior to his law enforcement career, he served a tour of duty in the Republic of Vietnam with the 1st Cavalry Division of the U.S. Army. Dennis holds an Associate of Arts Degree in Criminal Justice from San Diego City College, a Bachelors Degree in Business Administration from National University and a Master of Arts in Management Degree from the University of Redlands. He is a graduate of the FBI National Academy.
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Craig Beery
Craig Beery is a former Sergeant on the San Diego County Sheriff’s Department where he was assigned to the Special Enforcement Detail/SWAT team. During his law enforcement career he worked detentions, patrol, and training. He was theCraigs Picture Tactical Operations Center Supervisor on SWAT call-outs. Craig has been a POST Master chemical agent instructor since 1988. He serves on the POST chemical agents advisory committee for aerosol chemical agents. Mr. Beery is considered a subject matter expert by POST in the fi eld of non-lethal
chemical agents. He teaches criminal justice subjects at three San Diego area junior colleges and is a law enforcement trainer and consultant.
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