Revised: 6/16/2026
Reposted: 3/30/2026

This position is responsible for conducting criminal investigations on behalf of the District Attorney’s Office.

Provides support to prosecuting attorneys during criminal investigations conducted before and during the prosecution of criminal cases.
Conducts investigations on a wide variety of criminal complaints and felony and misdemeanor criminal cases, including such areas as nonsufficient fund checks, spousal abuse, narcotic offenders, fraud, and child abuse.
Prepares and serves criminal process documents.
Makes arrests as necessary based on probable cause, bench warrants, search warrants, arrest warrants, and criminal complaints.
Provides courthouse and courtroom security during trials.
Locates and contacts victims, witnesses, and potential witnesses; makes travel arrangements for victims and witnesses; conducts background checks on potential witnesses; coordinates witness appearances at trial; and explains court procedures.
Testifies in court regarding evidence gathered during pretrial investigations.
Obtains statements, documents, and related evidence for use in court.
Prepares courtroom visual aids, such as diagrams, photographs, and documents.
Assists District Attorneys during court proceedings.
Checks and verifies jury lists.
Retrieves, maintains, and stores physical evidence.
Operates police radios, computers, photographic and recording equipment, and other related law-enforcement equipment.
Performs any other duties as assigned.

Knowledge, Skills, and Abilities

Knowledge of the purposes, principles, terminology, and practices required in criminal investigations, legal proceedings, and the judicial process.

Knowledge of legislative updates and professional mandates related to criminal investigations, legal proceedings, and the judicial process.
Knowledge of audio and video formats, evidentiary technology, and related court procedures.
Knowledge of evidence preservation and chain of custody requirements.
Knowledge of equipment, technology, materials, and chemicals used in criminal and crime scene investigations.
Skill in the use of computers and job-related software programs.
Skill in interview techniques.
Skill in processing, analyzing, and preserving evidence.
Skill in the analysis of problems and the development and implementation of solutions.
Skill in the preparation of clear and precise administrative reports.
Skill in oral and written communication.
Ability to communicate orally and in writing in the English language and orally in the Spanish language.

Must have a high school diploma or GED from an accredited institution.
Must have at least six ( 6 ) years of experience.
Must have a Texas Commission of Law Enforcement Officers Standards and Education (TCOLE) License.

Complexity/Scope of Work

The work consists of a variety of investigative duties. The variety of tasks to be performed contributes to the position's complexity.

The purpose of this position is to assist in the investigation of criminal cases. Success in this position results in the successful prosecution of criminal cases.

Physical Demands/Work Environment

Occasionally

Ascending or descending ladders, stairs, scaffolding, ramps, and poles.
Moving oneself in different positions to accomplish tasks in various environments, including tight and confined spaces.
Remaining in a stationary position, often standing or sitting for prolonged periods.
Moving to accomplish tasks or moving from one worksite to another.
Adjusting or moving objects up to 20 pounds in all directions.
Repeating motions that may include the use of wrists, hands, and/or fingers.
Operating machinery and/or power tools.
Operating motor vehicles or heavy equipment.
Assessing the accuracy, neatness, and thoroughness of the work assigned.
Working in low temperatures.
Working in high temperatures.
Working in outdoor elements such as precipitation and wind.
Working in noisy environments.
Working in hazardous conditions.
Working in small and/or enclosed spaces.
Working in adverse environmental conditions is expected.
Sedentary work that primarily involves sitting/standing.
Light work that includes carrying objects up to 20 pounds.
Medium work that includes carrying objects up to 50 pounds.

Constantly

Communicating with others to exchange information.

Other Requirements/Information

Must possess a valid and current Texas Driver's License or a Texas Identification card.

The Webb County Drug and Alcohol Policy applies to this position. Pre-employment drug and alcohol testing, a Motor Vehicle Record (MVR) check, and a criminal background check are required.
This position is not covered under Civil Service; however, all other Webb County policies apply.

Valid Texas Driver's License or Texas Identification Card*
*If the applicant holds an out-of-state Driver's License or Identification card, a State of Texas Driver's License or Texas Identification Card must be obtained prior to employment.

Webb County (TX)

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