ANNOUNCEMENT: NEW NATIONAL SECRETARY & TREASURER

With the recent amendment to the NCISA Bylaws separating the Secretary/Treasurer position into two independent offices, the NCIS Association is pleased to announce the appointments of Mary Margaret Shanley as our new National Secretary and David T. Compton as our new National Treasurer. Both were vetted and approved by the Executive Board to serve in these capacities.

Click photo to read their bios.

Mary Margaret Shanley
National Secretary

David T. Compton
National Treasurer

Mary Margaret Shanley – Secretary

Mary Margaret was born and raised in Syracuse, New York, the youngest of six children, where her father served as a Deputy Sheriff. She earned a Bachelor’s degree in Criminal Justice from Arizona State University in 1983. In 1985, she was recruited by Special Agent Karl Rodriguez and hired by the Naval Investigative Service (NIS), beginning her career at Naval Station San Diego. She retired in 2010 after 25 years of dedicated federal service and has continued her association with NCIS.

During her career with NIS/NCIS, Mary Margaret served at Naval Station San Diego and other San Diego bases, aboard U.S. Navy ships, and spent many years assigned to the Marine Corps, working at all the southern California and Arizona bases. Her service also included overseas assignments to the Philippines and to Diego Garcia, British Indian Ocean Territory, where she served as the first female Special Agent in Charge, along with TDYs and deployments too numerous to count.

Mary Margaret’s career encompassed a wide range of investigative and leadership roles. She began in general crimes and later specialized in crimes against children and homicide investigations. She served in crisis intervention and hostage negotiation, on Special Protection details, and as a Field Training Agent. She was the first military/law-enforcement liaison with the San Diego Police Department and was instrumental in the development of NCIS participation on the SDPD Hostage/Crisis Negotiation Team. She also spent many years working in counterintelligence (CI).

Throughout her career, she received numerous CI awards for investigations and operations with the FBI and other agencies. She worked closely with senior Navy and Marine Corps command-level leadership at IMEF, 1MarDiv, 3rd MAW, MC Base Camp Pendleton, Navy Region Southwest, SPAWAR/SSC, NSWC Coronado, and many more. From 1992 to 2010, she served as the team Captain/Co-Captain for NCIS’ team in LAPD’s Baker to Vegas Challenge Cup.

Following her retirement, Mary Margaret remained active with the NCIS Association (NCISA), Southwest Chapter, serving as Vice President and later President. She is currently a NCISA member-at-large. She volunteers with veterans and law-enforcement groups in suicide prevention and crisis intervention and leads the NCISA Outreach Program, now known as the NCISA Legacy Circle, which provides support to widows and widowers within the Association.

Mary Margaret is a certified Grief Educator and continues studies in thanatology. She is the widow of San Diego Police Detective and DEA Task Force Officer Patrick Shanley, who died unexpectedly in December 2022. She currently serves as the National Secretary of NCISA.

David T. Compton – Treasurer

David T. Compton brings more than three decades of federal law-enforcement, cyber operations, and financial oversight experience to NCISA. A retired Naval Criminal Investigative Service (NCIS) Supervisory Special Agent and former Division Chief for Cyber Investigations at NCIS Headquarters, he has led complex criminal, fraud, counterintelligence, and cyber investigations in support of the Department of the Navy and the broader national security community.

Mr. Compton began his NCIS career in 1986 at the NCIS Field Office in Norfolk, Virginia, where he investigated general crimes, fraud, and foreign counterintelligence matters, including espionage and compromises of national defense information. He later served at the NCIS European Field Office in Naples, Italy, overseeing counter-espionage operations and serving as country referent for Germany, where he worked closely with federal, state, and local German authorities and authored timely threat assessments and intelligence reports.

He subsequently led NCIS Resident Agency Philadelphia as Resident Agent in Charge, managing a multi-disciplinary team responsible for preventing terrorism, protecting secrets, and reducing crime across Pennsylvania and western New York. At NCIS Headquarters in Washington, D.C., he served as Supervisory Special Agent for the Cyber Program, overseeing the transition from a field-office-run program to a headquarters-managed capability and providing policy, training, budgeting, staffing, and database oversight for cyber-related investigations and operations. As the senior NCIS liaison to U.S. Fleet Cyber Command/U.S. Tenth Fleet at Fort Meade, Maryland, he coordinated law-enforcement and counterintelligence support to cyber operations at the national level and contributed to contingency planning in the cyber warfare battlespace.

As Division Chief for Cyber Investigations at NCIS Headquarters in Quantico, Virginia, Mr. Compton managed all NCIS cyber investigations and operations and led the Critical Infrastructure Protection Program. In this role, he coordinated with Combatant Commands, local, state, and federal partners, and private industry leaders, while supervising a team of agents and investigative computer specialists responsible for both unclassified and classified investigative databases.

Following his NCIS career, Mr. Compton served as a GS-15 Special Agent with the Special Inspector General for Afghanistan Reconstruction (SIGAR) in Arlington, Virginia, where he conducted major white-collar investigations involving U.S. funds dedicated to the reconstruction of Afghanistan. His work focused on public corruption, contract fraud, money laundering, and Foreign Corrupt Practices Act violations. He also managed information-technology requirements for the investigative division, developed the Statement of Work for a $3.5 million data-analytics and mining contract, and served as the Contracting Officer’s Representative.

In the private sector, Mr. Compton has held senior leadership roles in cyber and information technology. As Vice President and founding partner of C2IS Inc. in Manassas, Virginia, he helped clients design, implement, and optimize IT systems, leveraging his law-enforcement and cyber expertise. As a senior cyber analyst with GCUBED, Inc., he supported the Counterintelligence Division of the Defense Counterintelligence and Security Agency (DCSA) in Quantico, Virginia, integrating reporting and metrics and providing executive-level cyber insights to senior leaders across the Department of Defense and the Intelligence Community. He later became a founding member and President of CSIS LLC, providing background-investigation support and counterintelligence surveillance-detection training to clients including the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), the Department of Defense, the Defense Intelligence Agency (DIA), the Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP), and the Joint Counterintelligence Training Activity (JCITA).

Mr. Compton holds a Master of Science in Computer Science and Information Assurance from the University of Maryland University College and a Bachelor’s degree in History from the University of Virginia. He has completed extensive coursework and training in engineering, economics, calculus, physics, project management, cyber forensics, and accounting, including EnCase forensic software training and instruction from the Defense Cyber Forensics Training Institute. His professional recognition includes U.S. Attorney’s Office Public Service Awards, NATO’s Allied Peace Award, a SECNAV citation for support to the President of the United States, the Navy Meritorious Civilian Service Award (twice), a Joint Military Civilian Commendation Award, and induction into the Upsilon Pi Epsilon graduate honor society.

Mr. Compton currently serves as the National Treasurer of the NCIS Association, applying his extensive investigative, cyber, and management background to support the Association’s financial stewardship and long-term organizational health.