Mission
The NCIS mission is to investigate and defeat criminal, terrorist, and foreign intelligence threats to the United States Navy and Marine Corps-ashore, afloat, and in cyberspace.
NCIS Leadership 


Senior Executive Service (SES) logo

   Sandy MacIsaac   
   Executive Assistant Director for National Security
   Naval Criminal Investigative Service

 
Special Agent Sandy MacIsaac was promoted to the Senior Executive Service and selected as the Executive Assistant Director for National Security matters in April of 2014. In this capacity, he is responsible for NCIS’s counterintelligence (CI), combating terrorism (CT) and cyber missions. Special Agent MacIsaac’s previous assignments include serving as the Assistant Director for National Security matters from 2010 to 2014; Special Agent in Charge of the Washington DC Field Office 2008-2010, Deputy Assistant Director for NCIS’s Maritime Domain
Awareness program 2007-2008 and various leadership assignments in Yokosuka, Japan from 2001 to 2006. While assigned in Japan, he was responsible for NCIS CI and CT support to U.S. Naval Forces operating in the Seventh Fleet area of responsibility.

Special Agent MacIsaac joined the Naval Criminal Investigative Service in 1989. Since joining NCIS, he has served additional tours at Naval Air Station Lemoore, CA, Naval Station Pearl Harbor and NCIS Headquarters Washington D.C. He was also deployed to Baghdad, Iraq, as the Operations Chief for the Multi-National Forces Iraq, Strategic Counterintelligence (CI) Directorate (SCID). The SCID provided force protection and CI support to Coalition Forces throughout Iraq.

In 1995, Mr. MacIsaac was recognized as the Kings County, CA Peace Officer of the Year. While assigned to Naval Station Pearl Harbor in 1997, Special Agent MacIsaac was recognized as the Trial Services Office Pacific NCIS Agent of the Year. For outstanding service in Iraq, he was awarded the Joint Civilian Service Achievement Award. The SCID unit further received the DOD Counterintelligence Field Activity “CI Team” of the Year Award for 2004.

A native of Sebastopol, CA, Mr. MacIsaac received his bachelor’s degree in Social Science from California State University at Chico. In 2007, he graduated with distinction from the Naval War College, Newport, RI, with a Master of Arts degree in National Security and Strategic Studies.

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Naval Criminal Investigative Service
27130 Telegraph Road, Quantico, VA 22134

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