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U.S. Department of the Interior
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Law Enforcement Divison

Mission: To lead the Department of the Interior's law enforcement programs by providing effective direction, oversight, guidance, and coordination. Develop and maintain oversight of Department policies and procedures that ensure an effective, efficient, and consistent law enforcement program throughout all bureaus and offices, to include investigations, enforcement activities, training, and administration of such programs.

The Law Enforcement Division develops and disseminates law enforcement policy and coordinates the development of bureau programs related to drug enforcement, border coordination, training and others. The division facilitates special law enforcement and security operations during critical incidents or national emergencies and provides program oversight for various DOI law enforcement programs.

The Law Enforcement Division is composed of the Operations and Policy Branch; the Border Management Branch, Drug Enforcement Branch, the National Law Enforcement Training Office (NLETO); and the Professional Responsibility Branch. These offices are managed by Special Agents who report to the Assistant Director of Law Enforcement. To contact the Law Enforcement Division, please call 202-208-5903, Monday through Friday, 7:30am – 4:00pm Eastern Time or 202-208-4108/877-246-1373 (24 hours).

Assistant Director of Law Enforcement
Tlynn Tim Lynn
Assistant Director of Law Enforcement

Tim Lynn is an Assistant Director for the Law Enforcement Division within the Department of the Interior - Office of Law Enforcement and Security (OLES) located in Washington DC. He provides policy guidance for the program areas of Border Management; Drug Enforcement; Training; and the Victim Assistance Program.

Tim has occupied numerous positions within the federal government prior to his employment with the DOI—OLES. Tim served in the U.S. Navy SEABEES at the Presidential Retreat Camp David, and has served in federal law enforcement since 1991. Tim began his law enforcement career with the U.S. Secret Service – Uniformed Division that included duties at the White House Branch, and the Administrative Support Branch - Emergency Response Team. Tim began working for Forest Service Law Enforcement & Investigations in 1998 on the Mark Twain National Forest. Tim has served in various locations within the National Forest System as a Law Enforcement Officer, Patrol Captain, Special Agent, Senior Special Agent, and as the Assistant Director for Investigations. His last position was as the Director for the Office of Safety and Occupational Health.

Tim's formal education includes coursework for a Bachelor's Degree in Police Science at the George Washington University and coursework in Behavioral Science at the University of Maryland—University College. Additionally, Tim is a graduate of the Forest Service—Senior Leader Program and has completed various training while serving in the U.S. Navy; the Federal Law Enforcement Training Center – Police Training Program and Criminal Investigator Training Program; the U.S. Secret Service - Specialized Police Training and the Emergency Response Team Specialized training.

Tim has over 21 years federal law enforcement experience.


  • Operations and Policy:
    • The branch provides technical direction in the development of DOI policies and plans for carrying out law enforcement programs. Staff provides technical assistance from a broad Interior-wide perspective and interprets and develops policy for field implementation. The branch chief serves as the coordinator to the Office of the Solicitor – General Law for law enforcement policy.

      In addition, the branch chief serves as the Interior supervisor/coordinator for the deployment of law enforcement resources under the National Response Plan or other critical incidents/special operations.

    • Victims Assistance Program: The primary purpose of the Department of the Interior's Victim Assistance Program is to provide support to victims of crimes occurring within DOI lands. Historically, law enforcement has focused on the apprehension and prosecution of criminals --- our response is intended to place victims’ concerns and needs as a priority. Recognizing that victim interaction with the criminal justice system is vital, Department law enforcement officers strive to treat victims with sensitivity and respect. Victims are also provided with local and national resources, as well as being notified of their federal rights as a crime victim. These rights include:

      1. The right to be reasonably protected from the accused.
      2. The right to reasonable, accurate, and timely notice of any public court proceeding, or any parole proceeding, involving the crime or of any release or escape of the accused.
      3. The right not to be excluded from any such public court proceeding, unless the court, after receiving clear and convincing evidence, determines that testimony by the victim would be materially altered if the victim heard other testimony at that proceeding.
      4. The right to be reasonably heard at any public proceeding in the courts involving release, plea, or sentencing, or any parole proceeding.
      5. The reasonable right to confer with the attorney for the Government in the case.
      6. The right to full and timely restitution as provided in law.
      7. The right to proceedings free from unreasonable delay.
      8. The right to be treated with fairness and with respect for the victim’s dignity and privacy.

      Training is provided to establish guidelines to be followed by officers of Department of the Interior in the treatment of victims of crime to minimize the frustration and confusion that victims may endure. Toward that end Regional Coordinators are available as trainers and a resource for law enforcement officers and victims of crime.

      Another priority for the Departments’ Victim Assistance Program is working with the Bureau of Indian Affairs (BIA) to improve services to Native American victims of crime. The VAP has collaborated with the BIA and the U.S. Department of Justice, Office for Victims of Crime, to place Victim Specialists in 12 areas to assist underserved tribal victims. The BIA Victim Specialists will work with over 20 tribes to provide services such as crisis counseling and assistance with Crime Victim Compensation, as well as information and referrals.

      The Department of the Interior’s Victim Assistance Program is managed by the Office of Law Enforcement and Security. Contact the Victim Assistance Program at 202-208-3193 Monday through Friday, 8:00 – 4:00 PM Eastern Time. At all times, the DOI Watch Office is available at 877-246-1373 for crime victim information and referral.

    • Branch Members:
      • Investigator and Policy Analyst
      • Investigator
      • Victims Assistance Specialist
  • Border Management:
    • The branch provides technical direction, and assistance in the development of bureau and office policies and plans for carrying out border management and drug enforcement functions.
    • The branch chief is responsible for oversight of Interior-wide border coordination activities. This includes supervision of three field border coordination for the southwest, southeast, and northern border. The branch chief serves as the primary point of contact with the Department of Homeland Security, Border and Transportation Security directorate, Customs and Border Protection, US Border Patrol and other external partners.
    • Northern and Southern Border Coordinators: The Northern and Southern Border Coordinators assist interior units impacted by Illegal cross border activities. The coordinators provide liaison with US Border Patrol Sectors that encompass Interior lands to facilitate interagency communications and conflict resolution. The Northern and Southern Border Coordinators participate in and support inter-agency Border Management Task Forces, facilitate coordination between Interior law enforcement components and external law enforcement partners.
    • DHS/DOI Liaison: The DHS/DOI Liaison agent serves as liaison for the Strategic Border Initiative (SBInet) component of Customs and Border Protection. The Liaison represents the Department when addressing interagency and law enforcement and environmental issues involving US Customs and US Border Protection.
  • Drug Enforcement:
    • The branch provides technical direction and assistance in the development of bureau policies and plans for carrying out drug enforcement functions. The branch coordinator works with DOI law enforcement on various challenges they face in combating drug use, sales, smuggling, cultivation and manufacturing on DOI lands as well as the harm and risks to the environment, bureau employees and the visiting public.
  • Professional Responsibility:
    • The branch provides oversight, coordination, and support for the bureaus and offices to ensure professionalism, ethics, integrity, and compliance in the Department’s law enforcement programs. The primary responsibility of the Office of Professional Responsibility is to establish and maintain a culture of integrity and prevent, detect, and resolve issues of misconduct or noncompliance. The branch is responsible for identifying institutional risks, performing audits, reviews and investigations, augmenting departmental compliance through effective education and training programs, and fostering the values of the Department’s overall mission.
    • In addition, the branch provides coordination with the Federal Bureau of Investigation (FBI) Criminal Justice Information Services (CJIS) division on issues regarding training, access, issuance and oversight of several databases.
    • To register a complaint, you may contact the respective DOI bureau’s Internal Affairs Unit or the Department’s Office of Inspector General at 800-424-5081
    • Branch Members:
      • Special Agent, Policy Compliance
      • Special Agent Internal Affairs
  • Training:
    • The branch is responsible for several important functions in DOI. The branch oversees the Department law enforcement training programs which involves studying and analyzing trends in law enforcement related to natural resources, wildlife preservation and land management. The branch develops and implements basic, advanced, and in-service law enforcement training programs for new and experienced Special Agents and other law enforcement officers. The branch is responsible for developing policies and other standards on training for Department law enforcement and security programs. The office also conducts investigations of a sensitive or special nature.