Toxicologist I

US Government, Institute of Forensic Sciences


The Mission of the Harris County Institute of Forensic Sciences is to provide medical examiner and crime laboratory services of the highest quality in an unbiased manner with uncompromised integrity.



To provide consistent, quality death investigation and laboratory analysis for the benefit of the entire community.


To create a technological strongpoint for legal agencies to facilitate justice in criminal and civil proceedings.


To establish an academic environment for training in the field of Forensic Science.


Brief Toxicologist Overview:

The Toxicologist 1 is an early-career forensic toxicologist. This position is expected to operate analytical instrumentation, critically assess analytical data, report test findings, and render expert opinions and testimony in court primarily concerning tests performed by the laboratory.


Duties and Responsibilities:

Casework analysis and reporting:

  • Performs toxicological analyses including ELISA, CO-oximetry, chemistries, ethanol and volatile quantitation with headspace GC/FID, and drug testing with GC/MS, GC/MS/MS, LC/MS/MS and/or LC/TOF MS instrumentation; critically evaluates instrumental data; reports results supported by analytical findings

Result interpretation and testimony:

  • Evaluates toxicology test results within case context.

  • Testifies to analytical procedures performed; may testify to the effects of alcohol on human performance and behavior

  • Technical review of casework:

  • Performs technical review of batch and case data to ensure compliance with laboratory procedures and accreditation standards

Laboratory support:

  • Performs sample preparation techniques; receives, inventories and stores evidence; prepares test reagents and maintains supplies; performs laboratory upkeep duties

Harris County is an Equal Opportunity Employer
 If you need special services or accommodations, please call (713) 274-5445 or email

 This position is subject to a criminal history check. Only relevant convictions will be considered and, even when considered, may not automatically disqualify the candidate.

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