About Us

Annapolis Defense & Security was started by in 2013 by Joe Lynch and Aaron Herschman. ADS offers tailored training programs designed to meet the needs of both private citizens, professional security, law enforcement, military, and private industry. It is the philosophy of ADS that an individual will perform only to the best of their training. ADS has adopted the "reality-based" approach to training and incorporating the most current adult-learning techniques in every training offering. These training programs enable individuals to adopt a more informed decision-making process and enhances performance when engaged in challenging situations by adding a level of personal experience not available in a traditional classroom environment.

ADS has developed an instructor mentorship program to immerse more proficient and advanced students in the instruction role to develop embedded instructor resources within the team leadership to facilitate continuous feedback and team development.

ADS is also a NAEMT accredited training organization with training cadre available for clinical, tactical, emergency, and trauma medical services training and certification. A train-the-trainer program development track is available to train instruction and administrative staff to develop an internal training organization for tactical combat/emergency casualty care, prehospital trauma life support, law enforcement/first responder tactical casualty care certification for staff.

ADS private security and investigation services capitalize on our substantial training capacity to develop best in class security and investigation professionals for ever role from retail security, high value target protection, and OCONUS security operations. Our security consulting and surveys are available to assist with understanding points of vulnerability and risk mitigation strategies. ADS has a full spectrum investigation capacity from cyber and accounting investigation to asset tracing, surveillance and evidence collection.

ADS Staff Members


Joe Lynch, Founder, Chief Executive Officer

Joe is a decorated veteran of the U.S. Army Infantry. He spent 25 years prior to founding ADS as a registered nurse gaining countless hours of emergency and trauma care experience in addition to most currently serving a number of stakeholder groups as a researcher and health care quality improvement program developer. As the founding influence of ADS, Joe has a pivotal role in the development and implementation of training programs and various service offerings including advance counter-terrorism and anti-abduction training, tactical medicine training programs, lethal and non-lethal weapons training, and unarmed combatives training.

Aaron Herschman, Founding Partner, Chief Operating Officer

Veteran US Army Special Forces, US Army Infantry, 20-year service record, with multiple peace keeping and combat tours and extensive firearms training and management experience. Additionally, Aaron served for 12 years as a professional firefighter; Aaron has extensive leadership, training, and administrative experience as a non-commissioned officer both in the military and the public safety sector as a firefighter with specialty training in hazardous materials management and personnel extrication. Aaron specializes in business operations; security and investigation program implementation; advanced tactics program implementation; and personnel management.

Dennis P. “Sarge” O’Toole, Senior Vice-President, Security and Law Enforcement Operations

Dennis “Sarge” O’Toole is a veteran law-enforcement officer. Sarge has served in nearly every capacity from patrol officer, arson investigator, school resource officer, detective, and law enforcement instructor. Sage has most recently retired from the United States Secret Service Federal Law Enforcement Training Academy as a Senior instructor. Among his most significant contributions can be counted is an expertise in police tactics, use of force, and a content developer and instructor for USSS/Law Enforcement Active Assailant Response. Sarge specializes in use of force; interview and investigation; and lethal and non-lethal weapons and tactics.

Gary Greco, Security and Intelligence Strategist

Gary is a retired Senior U.S. Intelligence Community Officer with over 30 years of experience in supplying intelligence information in support of the U.S Government’s most senior decision makers and warfighters. He attended the Naval War College for his Master’s degree in International Studies and went to the local University of Baltimore for his Bachelor’s degree in Criminology. Gary currently freelances as a security consultant to the Department of Homeland Security and small businesses with similar interests. His specialties are intelligence and operational security—surveillance, counter-surveillance, interrogation.

Angie Roller, Director of Operations

Angie is the principle contact for marketing and scheduling the “Fight Like A Girl” program to schools and businesses, and she also acts as an assistant instructor for the program. Angie works closely with inquiring and participating schools, businesses, and individuals to make sure ADS meets their needs. She is responsible for other tasks around the office, including administrative support and preparing materials for all. Before coming to ADS, she worked a wide variety of jobs to build her skillset, most recently as a retired firefighter and EMT with Prince George’s County Fire and Emergency Medical Services Department.

Kaya Roberts, Director of Marketing

A recent graduate of Stevenson University, Kaya came to ADS after completing her Bachelor’s Degree in Business Communication and several extensive internships in marketing and social media within the Baltimore area at the Baltimore Humane Society and Port Discovery Children’s Museum. She is responsible for all social media postings and website design, as well as maintaining the ADS brand and creating promotional materials. You may see her in classes taking photos and getting testimonials from students.