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C.A.S. & Sons Group Inc. is a Minority, Women, Disabled Veteran-owned training facility for California Bureau of Security and Investigative Services and Homeland Security Training Courses to include FAA Drone Training, as well as providing professional Use of Force Training and Security Services. The Company is founded by Cheryl A. Shaffer, an experienced former U.S. Army Military Police First Sergeant and a former CA Parole Agent.


The Company is located in the Los Angeles County South Bay area and provides high performance and professional security training and security services. The Team has over a combined 50+ years of professional military, law enforcement and Physical Security experience. Our team has made it their mission to prepare, train, and expand the field of security and protection to an international market.

Cheryl A. Shaffer - Owner

Security Consultant

BSIS Firearms & Baton Instructor

NRA Pistol , PPIH, & Rifle Instructor

USCCA Defensive Pistol Instructor

Cheryl Shaffer is the founder and CEO of C.A.S. and Group Inc, which is headquartered in Carson, CA. 

Cheryl Shaffer has served over 22 years for the Armed Forces in various areas such as the Military Police Field. She is currently a Retired First Sergeant, U.S. Military Police Corps and now serving as a Criminal Justice Associate Professor for the State of California Community Colleges.


She has led and trained over thousands of Soldiers in military law enforcement, corrections, leadership, leadership counseling, physical training, map reading, land navigation, advanced weapons training, anti-terrorism, counterterrorism, physical security, and other areas of policing and security.  


Cheryl Shaffer also owns C.A.S. and Sons Security Services, PPO#120079.  She is also licensed to perform Security Services in the state of Arizona, #1760159.  In addition, Cheryl Shaffer owns  C.A.S. and Sons Drone Training and Solutions.  She is currently a CA B.S.I.S. Instructor for Firearm,  Baton, Use of Force and Active Shooter Training, License #2206 & #1830, Neveda PILB Firearms Instructor, License #4240, Arizona Security and Firearms Instructor, License #1716557 & 1716556, NRA Pistol & Rifle Instructor, NRA Refused to be a Victim Instructor, NRA Personal Protection Inside and Outside the Home Instructor, NRA Home Firearm Safety Instructor,  NRA Range Safety Officer, and as well as a California Department of Justice  Bureau of Firearms Instructor.


With over 25+ years in the Physical Security Industry, Cheryl A. Shaffer is a seasoned Security Professional that effectively and efficiently leads her company.

Harvey Watson - Operations Officer
Security Consultant

Executive Protection Agent

BSIS Firearms Instructor

Harvey Watson is an experienced Executive Protection Agent, and retired California State Parole Agent, with 28 years of law enforcement experience and over 10+ years of private security experience.


He serves C.A.S. and Sons Protective Group as the Operations Officer and BSIS Firearms Instructor.


Harvey Watson holds a Bachelor’s Degree in Criminal Justice from University of Oregon. He has completed multiple training courses with California Department of Corrections and Rehabilitation-Division of Adult Parole Operations including Fugitive Apprehension Training, Professional Assault Response Training, Crisis Intervention and Conflict Resolution.

Harvey Watson is an expert in conducting high-risk arrests, small unit tactics, defensive tactics, undercover operations, physical and technical surveillance, physical security systems, intelligence analysis and tactical planning. He is a CA State BSIS certified firearms and tactical instructor, BSIS License #2385.  


Thus far, he has instructed over a thousand security professionals to obtain their state permits.

Harvey Watson has also trained hundreds of students in the field of Criminal Justice, Policing, Physical Security, and Firearms.



Precious Ares - Firearms Instructor
Security Consultant

BSIS Security Guard Instructor

NRA Pistol, Rifle & PPITH Instructor

Precious Ares is a certified NRA Basic Pistol, Rifle and Personal Protection Inside The Home Instructor.

Precious Ares is a southern California native, and was born and raised in Inglewood, CA. She received her undergraduate degree from Pepperdine University, and her Master’s Degree in Public Policy and Administration from California Lutheran University.

She graduated the Los Angeles Police Department academy as “Top Female Physical Recruit” and served 6 years as an patrol officer.  In her impeccable service, Precious obtained her Advanced POST certificate for her leadership role as a Police Corporal, and has completed various assignments to include specialized trainings in her patrol capacity. Precious has also instructed POST certified classes and also community based trainings such as Rape Aggression Defense (RAD) Self Defense courses.


As a C.A.S. and Sons Instructor, Precious is applying her law enforcement knowledge to empower and educate marginalized communities in safe firearm practices and protecting self, family and community.


Email her at  aresdefensivewellness@gmail.comfor any questions or private classes.


Lourdes Ramos - NRA Pistol Instructor

Lourdes Ramos is a High Profile Los Angeles Security Port Supervisor with 10+ years as a US Port Physical Security Expert.  She coordinates Homeland Security Training with Maritime Security Officers and US Coast Guard Trainers.  Lourdes serves as a NRA Basic Pistol Instructor and Unarmed Self-Defense Instructor.  She loves instructing and serving her community as well as her family.


Email her at for private lessons and or 2nd Amendment Right Issues.


Angel Hall - Marketing-Advertising-Sales

Angel is our subject matter expert in developing and implementing marketing strategies to promote our company’s products and services to customers. Her duties include producing and editing marketing content, tracking the reach of campaigns and conducting market research with customers.  In addition, Angel provides outstanding customer service to our customer base and our vendors.



Enrique Cardenas - NRA Pistol Instructor

Enrique Cardenas is a certified NRA Basic Pistol Instructor. He has served in the field of Physical Security for over 15+years as an Armed BSIS Security Officer and consults on security job estimates. He has trained hundreds of security guards and private citizens in Use of Force and Firearms Handling. 


Email him at for any questions or private classes.

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Joseph L. Adams - BSIS Firearms Instructor

Joseph L. Adams is a certified BSIS Firearm & NRA Basic Pistol Instructor and an expert in the field of Physical Security.  He is a Retired US Army Officer of 20 years and has deployed over 3 times, once in the U.S. and twice in the Middle East to support our Homeland Defense. He has trained individuals and officers on security tactics with a number of different security forces around the world. Joseph also serves as a  certified First Aid CPR/AED Instructor.  


Call him for private classes at 310.251.9278 or email

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