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About Our Team

Learn more about our leadership and how HSC is equipped to serve members of the public in Visalia, California, nationwide & worldwide. Our many years of experience is not the only reason why you should choose us for security services.


Vincent Hampel

President & CEO

Vincent Hampel is a Federal Law Enforcement veteran with more than 20 years of experience. Vincent spent the majority of his time in an elite special operations group. At the height of his career, Vincent attained national senior management positions. He wrote national policy, ran multi-million dollar budgets for the group, managed a national SOG group, as well as deploying overseas in support of federal law enforcement missions.

Vincent’s overseas deployments include Kyrgyzstan, Morocco, Dominican Republic, El Salvador, Hungary, and Costa Rica. He also served as a liaison between host governments and the United States government.

Vincent is an Emergency Medical Technician, Rescue Diver, Special Operations Group instructor, and Active Shooter Instructor. Among his many accomplishments, Vincent participated in pre-deployment assessments overseas, in which he evaluated the safety of the host nation for future law enforcement deployments. Additionally, Vincent is a veteran of the United States Navy.

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Vincent Hampel

Brian Hampel

Brian Hampel, M.S.

Vice President

Brian is a 14-year veteran of the United States Army, Military Police Corps. He is currently a Sergeant First Class (Senior Non-Commissioned Officer) in the US Army Reserve.

Brian deployed three times in support of the global war on terrorism. His deployments include Iraq, 2003 (invasion of Iraq), Iraq, 2004 (first democratic elections), and Afghanistan, 2011 (long haul logistical security mission). During his last tour to Afghanistan, Brian led and managed a platoon of Military Police Soldiers.

Brian has three years as an armed security guard, as well as three years with the Visalia Unified School District as a campus supervisor. Additionally, Brian was a police officer for the Department of Veterans Affairs hospital in Fresno, California.

Brian served as his department’s Terrorism Liaison Officer-Coordinator. He has earned a Bachelor’s Degree in Criminal Justice from Grantham University and a Master’s Degree in Terrorism and Counter Terrorism from Henley-Putnam University —with emphasis on Protection Operations and Counter Terrorism Strategies.

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Dr. Frank Reiser

HSC Medical Advisor

Frank Reiser, MD is a board-certified emergency physician since 2002. He completed his medical school and emergency medicine training at the University of Arizona in Tucson, AZ. He practices emergency medicine in a number of environments including urban, rural and international settings. Dr. Reiser is knowledgeable in a number of specialty areas of emergency medicine including Emergency Medical Systems (EMS), tactical medicine, wilderness medicine and disaster medicine.

Dr. Reiser served as EMS medical director for a number of agencies including Asotin County in Washington, Tucson Police Department Special Weapons and Tactics, Office of Air and Marine in Tucson Sector, Office of Border Patrol in Spokane Sector. He provided medical advice for the Tucson Sector, Office of the US Border Patrol specifically the Border Search, Trauma and Rescue (BORSTAR) Team and Special Operations Group, US Border Patrol in El Paso, Texas. He helped develop the BORSTAR Tactical Medicine Course. Dr. Reiser served as medical director for the Tucson Police Department Special Weapons and Tactics (SWAT) team and established their tactical medicine program. He helped develop their medical response to active shooter, barricaded subjects, hostages and SWAT callouts. He completed his certification for being a Fellow of the Academy of Wilderness Medicine by The Wilderness Medical Society. For 15 years, Dr. Reiser volunteered with Southern Arizona Rescue Association (SARA). SARA performed search and rescue operations in Southern Arizona in conjunction with the Pima County Sheriff’s Department. He has taught wilderness medicine courses in Patagonia, Chile. Dr. Reiser serves as a member of two disaster teams, AZ-1 Disaster Medical Assistance Team (DMAT) and WA-TF1 Urban Search and Rescue (USAR) Team. He has responded to disasters and special events with both of those teams including Hurricane Ike in 2008, Oso Mudslide in 2014 and Asian-Pacific Economic Cooperation (APEC) event in 2011. Dr. Reiser currently serves as a civilian, emergency physician for the US Department of Army at the 121st Combat Support Hospital/Brian Allgood Army Community Hospital in Seoul, South Korea.

Dr. Frank Reiser

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