Investigations Leader, Detective Sergeant

Cooperative Education; Fairfax (VA); On-site; USD 89,000 - 108,000; Full time

Job summary

George Mason University Police Department in Fairfax, VA is seeking a Detective Sergeant to supervise criminal investigations, oversee investigative personnel, and guide case management in a 24/7 university policing environment.

This essential role provides leadership, training, and coordination with prosecutors and external agencies, ensuring timely, thorough investigations and compliant operations across the department.

Qualifications

• Virginia DCJS Law Enforcement Officer certification is required.
• Active General Instructor and/or Field Training Officer certification is required.
• Progressive, sworn law enforcement experience (3+ years) is required.
• Ability to supervise multiple investigations and coordinate with prosecutors and agencies.
• Excellent written and verbal communication skills are essential.
• Eligibility to work in the United States; on-call availability is expected.

Responsibilities

• Supervise detectives and investigative personnel to ensure thorough investigations.
• Review and assign cases based on priorities, complexity, workload, and resources.
• Coordinate with the Commonwealth’s Attorney, courts, forensics providers, and other agencies as appropriate.
• Ensure proper collection, preservation, and submission of evidence (physical, digital, etc.).
• Provide guidance on interviews and interrogations, witness development, and testimony.
• Prepare cases for prosecution and assist with court appearances as needed.

Skills

DCJS Officer cert

Instructor/FO cert

Criminal investigations

Leadership experience

Case management

Interviews & interrogations

Multitask supervision

Education

Associate degree in related field

Job description

George Mason University Police Department in Fairfax, VA is seeking a Detective Sergeant to supervise criminal investigations, oversee investigative personnel, and guide case management in a 24/7 university policing environment.

This essential role provides leadership, training, and coordination with prosecutors and external agencies, ensuring timely, thorough investigations and compliant operations across the department.