Nathaniel Warren III
Dover,DE
Summary
Dedicated Police Sergeant experienced in patrol operations, criminal investigations, and frontline supervision. Managed critical incidents and complex personnel matters while leading a team of 12 sworn personnel, contributing to effective departmental operations. Leveraged extensive investigative background and advanced leadership training to mentor others and enhance organizational performance.
Overview
1
1
Certification
15
15
years of professional experience
Work History
POLICE SERGEANT
Dover Police Department
06.2024 - Current
- Provide direct supervision and leadership to 12 sworn personnel, ensuring effective daily operations and compliance with department policies, procedures, and applicable law.
- Supervise and coordinate personnel during significant incidents, including fatal motor vehicle crashes, shooting investigations, and a major tornado that caused major property damage throughout the City of Dover.
- Coordinate personnel and resources during critical incidents while maintaining communication with command staff, investigators, outside agencies, and other stakeholders.
- Exercise independent judgment and sound decision-making during critical incidents, personnel matters, investigations, and operational challenges.
- Provide guidance, mentoring, training, and performance feedback to subordinate personnel, with an emphasis on accountability, professional development, and performance.
- Successfully mentored officers transitioning into the Criminal Investigations Unit and Canine Unit, and helped develop a struggling officer into a high-performing member of the department.
- Address complex personnel matters with professionalism, fairness, and adherence to department policy, including assisting an officer through the grievance process and managing a significant personnel integrity matter that ultimately resulted in termination and subsequent loss of police officer certification.
- Review reports, investigations, arrests, use-of-force incidents, and other documentation for accuracy, completeness, and compliance.
MASTER CORPORAL / DETECTIVE
Dover Police Department
01.2020 - 06.2024
- Promoted to Master Corporal while continuing assignment to the Criminal Investigations Unit.
- Selected for assignment to the FBI Joint Terrorism Task Force (JTTF) in November 2021, serving in a multi-agency federal investigative environment through June 2024.
- Assumed primary investigator role for bomb-threat investigations targeting Edgewell, now Essity; collaborated with FBI partners and federal attorneys to identify, interview, and secure confession from the defendant, leading to successful prosecution and incarceration.
- Led investigation into theft of $600,000 in public and federal funds, coordinating efforts among federal agencies, City of Dover personnel, and prosecutors, resulting in case handed over to federal partners for successful prosecution.
- Served as lead detective in the investigation and successful prosecution of a series of shootings in Dover that resulted in one death and permanently injured three additional victims.
- Coordinated multiple law enforcement agencies during month-long shooting investigation and collaborated with prosecutors throughout two-week trial, contributing to the successful prosecution of the case.
- Developed extensive experience in complex investigations, interagency coordination, intelligence sharing, investigative strategy, case management, and working with federal, state, and local law-enforcement partners.
DETECTIVE
Dover Police Department
01.2015 - 01.2020
- Assigned to Criminal Investigations Unit, conducting follow-up investigations on serious and complex criminal offenses to build comprehensive cases.
- Conducted interviews and interrogations, prepared investigative reports and affidavits, obtained and executed search warrants, and evaluated evidence, coordinating investigations involving rape, burglary, robbery, and homicide to ensure thorough case development.
- Collaborated with prosecutors, outside agencies, victims, witnesses, and law-enforcement personnel throughout investigative process to facilitate successful case resolutions.
- Acted as the primary investigator in a 2017 homicide investigation, which led to the arrests and successful prosecution of two defendants. Coordinated investigative efforts across state lines with the Kent County, Maryland Sheriff's Office, including residential search warrants and arrests.
POLICE OFFICER
Dover Police Department
11.2011 - 01.2015
- Assigned to Assigned to C Platoon after completing training at the Delaware State Police Training Academy. following successful completion of the Delaware State Police Training Academy and Field Training Program.
- Executed patrol duties covering calls for service, criminal investigations, traffic enforcement, and community assistance, ensuring public safety and effective response to incidents.
- Acted as a shift investigator and primary investigator in numerous burglary and robbery investigations.
- Collaborated with Criminal Investigations Unit detectives on shooting and narcotics cases, supporting comprehensive investigative efforts.
Education
Master's Degree - Human Resources
Wilmington University
Dover, DE12-2027
Bachelor of Science - Organizational Dynamics
Wilmington University
Dover, DE01-2022
Associate Degree in Applied Science - Criminal Justice
Delaware Technical and Community College
Dover01-2010
Skills
- Personnel development
- Criminal Investigations
- Interagency Coordination
- Federal Task Force Operations
- Organizational leadership
- Accountability
- Operational Oversight
- Personnel Accountability
- Training & Instruction
- Problem solving
- Problem Solving & Decision Making
- Multi-Agency Collaboration
Accomplishments
- Officer of the Quarter — 4th Quarter 2023.
- Chief's coin from (Ret.) Chief Norman Wood for role as lead detective for investigative efforts associated with an officer-involved shooting investigation in May 2015.
- Multiple unit commendations throughout 15 years of service recognizing investigative efforts and successful case outcomes.
LEADERSHIP & PROFESSIONAL DEVELOPMENT
- Delaware State Police Leadership Development Program (LDP) — October 2025
- Police Executive Leadership and Operations Course (POLEX) — February–March 2025
- Pennsylvania State University — High Impact Supervision — September 2024
- FBI-LEEDA Executive Leadership Institute — August 2022
- FBI-LEEDA Supervisor Leadership Institute — June–July 2022
- Conduct recurring active-shooter, robbery, and emergency-readiness training for Dover Federal Credit Union (biannual), Del-One Federal Credit Union (annual), and Shore United Bank (annual).
- Conducted threat assessment seminars for Wesley College, Dover Federal Credit Unit, and Mental Edge Counseling.
- Instructed Special Investigators with the Delaware Department of Corrections in interview and interrogation techniques.
- Develop and deliver training to law-enforcement personnel and civilian organizations, adapting instruction to operational needs and threat environments.
Certification
POST Commission Certified Instructor, Dover Municipal Police Academy Instructor, ALERRT Instructor, Robbery Instructor, Citizens Response to Active Shooter Instructor
Timeline
POLICE SERGEANT
Dover Police Department
06.2024 - Current
MASTER CORPORAL / DETECTIVE
Dover Police Department
01.2020 - 06.2024
DETECTIVE
Dover Police Department
01.2015 - 01.2020
POLICE OFFICER
Dover Police Department
11.2011 - 01.2015
Associate Degree in Applied Science - Criminal Justice
Delaware Technical and Community College
Bachelor of Science - Organizational Dynamics
Wilmington University
Master's Degree - Human Resources
Wilmington University