Employment Opportunity

Crime Scene Investigator

Grapevine Police Department, Grapevine, Texas

Salary: $25.09 - $28.00 Hourly

Final Filing Date: September 20, 2019

Performs forensic activities and technical investigations involving the identification, collection, preservation, packaging, and analysis of evidence at crime scenes, including recovering, comparing and identifying trace evidence and fingerprints.

Duties and Requirements Click to read more


  • Assists in the investigation of criminal offenses and death investigations.
  • Documents crime scenes utilizing notes, photographs, videos, sketches, and reports.
  • Responds to non-emergency calls to take reports, gather information, and conduct investigations.
  • Obtains accurate measurements at scenes and prepares crime scene diagrams suitable for courtroom testimony.
  • Collects and properly preserves evidence.
  • Marks and documents evidence to maintain chain of custody from the time of collection through submission to the evidence/property section.
  • Processes latent and patent fingerprints for use in criminal investigations.
  • Analyzes and compares fingerprints; enters unidentified latent prints into Automated Fingerprint Identification System (AFIS) via Universal Latent Workstation (ULW) to conduct comparisons of latent with known fingerprint impressions; documents comparison results in reports.
  • Mixes and uses chemicals to process evidence.
  • Uses alternate light sources to locate latent prints, serological, biological fluids and trace evidence.
  • Testifies in court as a witness in qualified areas.
  • Ensures that the lab is kept clean and evidence is processed in a timely manner.
  • Conducts briefings and training as requested or required.
  • Researches forensic science field for current materials regarding new techniques in locating, collecting, and preserving all types of physical evidence.
  • Performs related duties as directed when such duties are a logical and appropriate assignment to the position.
  • Regular and timely attendance are required for this position.
  • Interacts professionally and respectfully with the public, coworkers and others in the course of daily work.
Required Skills
  • This position requires knowledge of laws and regulations for the collection and preservation of evidence, as set forth in the Texas Rules of Evidence and the Texas Code of Criminal Procedures. Knowledge of the chain of custody protocols; criminal court proceedings; proper safety and disinfecting procedures to be used at crime scenes; fingerprint collection and comparison methods; and basic photography principles.
  • The position requires skills in communicating clearly both verbally and in writing; preparing reports; having basic proficiencies in operating computers and Microsoft Office products; analyzing crime scenes for pertinent evidence; fingerprint methods, practices, procedures; and prioritizing assignments.
  • Employees work in the office and in the field and are exposed to cold and hot temperatures, road hazards, dust, toxic waste, chemical, mechanical, and electrical hazards, and hazardous physical substances and fumes.
  • Employees must demonstrate a working knowledge of the safety requirements and mandates of the Occupational Safety and Health Administration regarding hazardous materials, biohazardous materials and workplace safety.


This position requires:
  • A bachelor's degree from an accredited university and three years of law enforcement experience,
  • OR
  • An associate's degree or 60 credit hours from an accredited college or university and seven years of law enforcement experience,
  • OR
  • A bachelor's degree from an accredited university in Criminal Justice, Forensic Science, or related applied sciences field.

  • Must obtain an AFIS operator certification within one (1) year of employment.
  • Must never have been convicted, put on court-ordered community supervision, or probation for any criminal offense above the grade of Class B misdemeanor or been convicted, put on court-ordered community supervision, or probation for any Class B misdemeanor within the last ten years from the date of the final court order.
  • Must have never been convicted, placed on deferred adjudication, or probation for any theft or assault family violence offense.
  • Must be in compliance with the drug use and tattoo policies of the Grapevine Police Department.
  • Must possess a driver's license and/or acquire a Texas Driver's license and have an acceptable driving record as defined by City Policy.
  • The applicant must pass an interview board, background investigation, credit check, polygraph examination, Chief's review board, and conditional job offer requirements which includes a drug test and medical physical.
  • This position requires frequent after-hours obligations and may be subject to shift work hours.
  • Also, this position requires additional training as needed or determined by a supervisor.

Do you have the Education Required? See available on-line and campus-based degree programs now!

How to apply: Apply online

Posted: August 30, 2019

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