Cold Case Forensic Researcher & Investigator

Polk-County,-Ia; Iowa (LA); On-site; USD 60,000 - 85,000; Full time

Job summary

Polk County, IA is seeking a detail‑oriented investigator to conduct in-depth reviews of unresolved felony cases, compile analytical reports, and support case development with forensic and digital evidence analysis.

The role requires collaboration with prosecutors and law enforcement, with responsibilities including witness locating, evidence tracking, and maintaining organized investigative files.

Qualifications

• Bachelor’s degree in criminal justice or related field.
• Minimum three years of experience in criminal investigations or related fields.
• Ability to conduct comprehensive historical reviews and prepare analytical materials.

Responsibilities

• Review unresolved felony investigations and identify investigative opportunities.
• Research and analyze information using criminal justice databases and open sources.
• Develop timelines, case summaries, and analytical reports for case development.
• Coordinate evidence submission and advanced forensic testing as needed.
• Collaborate with detectives, prosecutors, and laboratories to maintain case integrity.
• Maintain organized files and prepare reports for prosecutorial review.

Skills

Criminal investigations

Evidence management

Forensic science

Digital forensics

Case analysis

Interagency coordination

written reports

Education

Bachelor’s Degree in criminal justice

Three years of investigations experience

Tools

Criminal justice databases

Public records research

Open-source intelligence

DNA technology basics

Job description

Polk County, IA is seeking a detail‑oriented investigator to conduct in-depth reviews of unresolved felony cases, compile analytical reports, and support case development with forensic and digital evidence analysis.

The role requires collaboration with prosecutors and law enforcement, with responsibilities including witness locating, evidence tracking, and maintaining organized investigative files.