SECURITY AS A SERVICE WE PROVIDE Majority of our officers are former military or police and POST academy certified. PIECE OF MIND WE PROVIDE Our officers are screened by CSS investigation unit and under go intensive training before going on duty. Armed patrol offices go through a three panel interview and a written test to see who are qualified to be in our them.

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Security services you can depend on

Trust Critical Synthesis Security to protect your home and business from any potential threats. Our superior security team will provide you with the safety and security that you need and deserve. During the meeting, you will receive plenty of information concerning the most effective solutions for personal and property protection.

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More information about us

Critical Synthesis Security is completely dedicated to your security.
Who we are

Our team

Our Operations

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Piece of Mind

Access controls, CCTV, monitoring

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Risk management services

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Electronic monitoring

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Secure high value sites

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Critical Synthesis Security offers a wealth of career opportunities. Apply today and join the team!


Executive team

  • Dennis A Timmons

    President and CEO

    Dennis A. Timmons is the Director of Emergency Services for Military Ocean Terminal Concord, Concord California. He is an experienced security professional with over 36 years of experience specializing in physical security, law enforcement, active shooter training, privacy compliance, operational risk, critical infrastructure and high-risk security operations for the Department of the Army.
    Dennis, served 26 years in the Army as a Military Police Officer. His assignment covered a gambit of locations and duty positions which included but not limited to Police Investigations, Criminal Intelligence, High Risk Person - Protective Service Officer. He has operated all over the world and has participated in several conflicts including the Global War on Terrorism in Iraq.
    After the Army, Dennis entered into the civilian work force for the Army as an Antiterrorism Officer for an Army Transportation Organization responsible for moving Military Cargo throughout the Pacific through the California Ports. He assisted and authored port evaluations and exercises highlighting “insider threats” and identifying vulnerabilities as well as solutions for both Military and Civilian Seaports throughout California.
    As the Director of Emergency Services, Dennis authored several full scale exercises which concluded with an Active Shooter event. He is considered an expert in the field and his exercises and training curriculum is used as a model for Law Enforcement and Emergency Services agencies.

  • Hanley Chan

    Security Consultant/Chief Instructor

    Hanley Chan was a former police officer for Department of Defense and San Francisco Patrol Special Police, University of the Pacific as an Public Safety officer, Aviation Ordnancemen in US Navy/Army Tanker in Army National Guard, California State Guard, instructor for US Department of Labor Jobcorps, EMT skills instructor for Unitek Education, EMT for American Medical Response/CrowdRx, and a CEO/president/security instructor for Security Intelligence Specialist. He currently volunteers for US Air Force Auxiliary Civil Air Patrol as a 1st Lieutenant and American Red Cross as Disaster Action Team/Service to the Armed Forces/Government Relations.
    Hanley Chan has over 22 years of security, medical, teaching and law enforcement experience. Hanley has over 100 plus certification, license, and credentials.
    He is an life member of International Police Association, American Board of Homeland Security, National Rifle Association, American Legion, Disabled American Veteran, and International Association of Law Enforcement Instructor. He has memberships with Fraternity Order of Police, International Brotherhood of Police Officers, National Tactical Officers Association, California Association of Tactical Officer, International Law Enforcement Educators and Trainers Association, Northern California Intelligence Center, FBI Infragard, National Business Emergency Operation Center, California Association of Law Enforcement Background Investigators, California Association of Licensed Investigators, American Federation of Teachers, and California Association of Licensed Security Agencies, Guards and Associates.