Office of Investigations & Casualty Analysis (CG-INV)


The Office of Investigations & Casualty Analysis (CG-INV) reports to the Director of Inspections & Compliance (CG-5PC) and is located at the U.S. Coast Guard Headquarters building in Washington D.C. The office is comprised of three divisions: Investigations Division (CG-INV-1), Compliance Analysis Division (CG-INV-2) and Data Administration and FOIA Division (CG-INV-3).


We lead Coast Guard's investigation program to promote safety, protect the environment, and to prevent future accidents.

The Office of Investigations and Casualty Analysis is directed by CAPT Lee Boone.  Mr. Timothy J. Farley serves as the Deputy Office Chief and CDR Martha Mannion serves as the Division Chief of Investigations Division (CG-INV-1). The Compliance Analysis Division (CG-INV-2) is headed by LCDR Baxter Smoak. The Data Administration and FOIA Division (CG-INV-3) is headed by Ms. Dawn Patterson.


Day-to-Day Activities and Key Processes:

  • Manage marine casualty and pollution investigation programs.
  • Manage pollution notice of violation program.
  • Manage violation investigations; adjudicated by Hearing Officer.
  • Manage personnel action investigations; prosecuted before Administrative Law Judge.
  • Conduct administrative clemency boards.
  • Manage drug and alcohol testing program.
  • Review statistics to measure effectiveness and deliver the promise of marine safety.
  • Support field in all of the above policy issues.

For Incident Investigation Reports (marine casualty reports auto generated from MISLE) click here.

Internal Program Information For Investigators -training materials, presentations, etc. may be found in the Investigations Community on the Portal.

Contact the Office of Investigations & Casualty Analysis (CG-INV):

Office of Investigations & Casualty Analysis (CG-INV)
U.S. Coast Guard STOP 7501
2703 Martin Luther King Jr. Ave. SE
Washington, DC 20593-7501