Dallas County
209 open roles
0000003351.Investigator III (Special).District Attorney 'S Office
Dallas, TX, United StatesPosted Jul 8, 2026
Job description
This position works independently in providing support and expertise to the Assistant District Attorney in investigating moderate to complex level cases and/or cases requiring special skills.
- Independently assists the assigned Assistant District Attorney in gathering pertinent data, identifying significant factors and recognizing solutions for the complex and/or specialized cases involving capital murder and high dollar value white collar crime.
- Independently locates and develops evidence for trial or plea negotiations.
- Works independently in planning and organizing work, as part of a trial or section, in preparing cases for disposition.
- Assists in reconstructing events, sequences and time elements in preparation of criminal cases.
- Locates, interviews, and notifies witnesses of trial dates by means of serving subpoenas, summons and writs, and makes arrests. Coordinates transportation and lodging of trial witnesses. Checks background of witnesses that may be used during trial.
- Collects and prepares physical evidence for trial which includes reviewing various reports such as medical autopsy and forensic reports, investigating the crime scene, reviewing criminal scene data, gathering evidence, determining what evidence needs to be analyzed and drawing informative accurate conclusions.
- Assists the Assistant District Attorney during jury selections and trial presentations.
- Supervises and trains Level I and Level II investigators; acts as lead when more than one investigator is required.
- Performs other duties as assigned. Education, Experience and Training: Must have passed a general educational development (GED) or (B) hold a high school diploma. A Bachelor’s degree from an accredited college or university in a job related field of study. Six (6) years of experience in investigative law enforcement required, OR has been awarded an Advanced Peace Officer Certificate from T.C.L.E.O.S.E and no experience. Special Requirements/Knowledge, Skills & Abilities: Must be a Certified Peace Officer and proficient in the use of a firearm. Knowledgeable of investigative techniques and ability to communicate both verbally and in writing with a diverse group of individuals. Skilled at applying interviewing techniques while assisting the prosecutors in adverse or hostile conditions. Must pass criminal background investigation. This position may require successful completion of a polygraph exam, psychological exam, physical exam and is subject to random, unannounced drug/alcohol testing. Physical/Environmental Requirements: Standard office environment 50% of the time with the remainder of time spent in a typical law enforcement street environment.
Description copied from Dallas County's careers page. Read the full posting before you apply.
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