Harris County

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DNA Analyst III

at Harris County

Posted: 9/1/2019
Job Status: Full Time
Job Reference #: 2538720

Job Description

Overall Job Objective

Position Description

Under the direction of the Forensic Genetics Director, the employee will perform scientific examination and analysis of biological evidence collected in connection with death and criminal investigations.

  • Performs scientific examination and analysis of biological evidence collected in connection with death and criminal investigations, including DNA testing and statistical analysis.
  • Testing may include screening for the presence of biological fluids and DNA analysis using Polymerase Chain Reaction/Short Tandem Restraints (PCR/STR) based methods.
  • Presents the findings in a technical report and verbally in a court of law through expert witness testimony.
  • Conducts scientific laboratory examinations and analyses of specimens submitted by forensic pathologists and law enforcement officers from medico-legal and criminal cases.
  • Prepares written reports that support the analytical findings and provides testimony as an expert witness in legal proceedings.
  • Maintains at least a minimum level of productivity as determined by Forensic Genetics Laboratory Director.
  • Participates in training, competency testing, and proficiency testing according to established protocols.
  • Operates and maintains laboratory instruments.
  • Trains new lab employees as delegated by the Forensic Genetics Director.
  • Participates in peer review of cases.
  • Assists in ensuring the laboratory remains in compliance with the ANAB accreditation standards and the FBI Quality Assurance Standards for Forensic DNA Testing Laboratories.
  • Maintains TFSC license requirements, American Board of Criminalistics certification and meet ANAB standards and the FBI Quality Assurance Standards by attending continuing education/training courses, workshops, seminars, conferences, and professional meetings.
  • Follows rigorously all Safety, Method Manual, and Quality Assurance / Quality Control protocols.
  • The employee must follow all established protocols and procedures and may be assigned other tasks as deemed necessary by the Forensic Genetics Director.


  • B.A./B.S. degree in Biology, Chemistry, Forensic Science or a related field of physical science with successful completion of a minimum of nine (9) semester hours (or equivalent) of coursework in Biochemistry, Genetics, Molecular Biology, and Statistics.
  • Required coursework must comply with the FBI's Quality Assurance Standards and DNA Analyst coursework requirements outlined in the Texas Administrative Code, Title 37, Part 15, Chapter 651, Subchapter C, Rule §651.207. https://bit.ly/2OQ83O4

Additional Requirements
  • One (1) year of forensic DNA laboratory experience.
  • Successfully completes proficiency testing requirements.
  • Must maintain a valid driver's license and the ability to safely operate a motor vehicle.
  • Must provide a DNA sample to be maintained by the Forensic Genetics Laboratory for quality assurance purposes.
  • Works with laboratory chemicals and various biological fluids – potential exposure to bloodborne pathogens.

Physical/Visual Requirements
  • Must be able to lift a minimum of 40 lbs. and sit or stand for long periods.
  • Must have visual acuity sufficient to perceive minute differences and details and to withstand the strain of continued close work.
  • Must successfully pass a test for colorblindness.
  • Must have manual dexterity sufficient to conduct laboratory tasks as determined by the Forensic Genetics Director.

Required Certification and/or Licensure:
  • Certification in a related area from the American Board of Criminalistics (ABC) is required within 2 years of hire date, or acknowledgement of this job description, and must be maintained for the duration of employment.
  • This position requires licensure by the Texas Forensic Science Commission. Licensure must be obtained by the end of the training period and must be maintained for the duration of employment.
NOTE: To qualify for this position, required education, experience, knowledge and skills must be clearly stated on your application's employment history. Resumes are welcome, but we do not use any information provided on your resume to qualify and refer you to the Hiring Department for consideration.



  • Master of Science degree in Biology, Chemistry, Forensic Science or a related field of physical science.
  • College coursework or training in the subject areas of statistics and/or population genetics.
  • One (1) year of laboratory experience conducting DNA tests in a forensic DNA laboratory
  • Knowledge of forensic DNA principles, laboratory techniques, and technology.
  • Knowledge of the Polymerase Chain Reaction (PCR), Short Tandem Repeat (STR) analysis, and capillary electrophoresis methods.
  • Knowledge of biological evidence collection and preservation techniques, rules of evidence, forensic serology, basic human anatomy and physiology, and basic laboratory safety.
  • Experience with evidence screening, DNA extraction, quantification, PCR amplification of STR fragments, and ABI Genetic Analyzers.
  • Computer literacy in the use of Microsoft Office applications (Word, Excel, Access, and PowerPoint) and familiarity with database applications such as JusticeTrax LIMS and CODIS.
  • Membership in one or more professional forensic organizations and certification in a related area from the American Board of Criminalistics (ABC).

General Information


  • Houston, TX
  • Based on 26 Pay Periods


Due to a high volume of applications positions may close prior to the advertised closing date.