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Toxicology Lab Division· Overview

Forensic DNA LaboratoryThe Washington State Toxicology Laboratory, established in 1963, performs drug and alcohol testing for coroners, medical examiners, law enforcement agencies, prosecuting attorneys, and the State Liquor Cannabis Board in all 39 Washington counties. The Toxicology Laboratory reserves the right to decide which method(s) to use in the detection of alcohol and drugs in submitted casework.

The laboratory receives approximately 13,000 cases per year of which approximately 50 percent are law enforcement DUI cases and 50 percent coroner/medical examiner cases. The laboratory is overseen by the State Toxicologist and has staff consisting of a Laboratory Manager, Quality Assurance Manager, Office Manager, two Forensic Supervisors, a Technical Lead, 14 Forensic Toxicologists and two Property and Evidence Custodians. Toxicologists accession samples in rotation and spend an average of two days a week testifying in court as experts on alcohol, drugs, and their effects.

The laboratory was American Board of Forensic Toxicology (ABFT) accredited in July 2005, becoming the 19th Forensic Toxicology laboratory to achieve ABFT accreditation. The Breath Test Program and Toxicology Laboratory successfully attained ASCLD/LAB ISO International accreditation of their breath alcohol calibration program on November 16, 2009.

Request for Analysis Forms

Toxicology Laboratory Manuals



Archived Documents

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Measurement Uncertainty

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Breath Alcohol Calibration Manuals

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Other Documents

Toxicology Lab Directory

Division Headquarters - Seattle

Toxicology Lab Division - Washington State Patrol
2203 Airport Way S., Suite 360
Seattle, WA 98134-2027

Phone: (206) 262-6100
Fax: (206) 262-6145

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Crime Lab Testing

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Toxicology Forms