LGC quartz forensic blood toxicology proficiency testing scheme: a review

Carrie Mullen, Robert A. Anderson

Research output: Contribution to conferencePaper


After attending this presentation, attendees will appreciate the value and utility of proficiency tests within forensic toxicology. Attendees will also be encouraged to perform in-depth review of their proficiency test results. 

This presentation will impact the forensic science community by improving laboratory operation and providing laboratories with greater awareness of what constitutes an appropriate test protocol and the significance of performance scores.

Proficiency testing should guard against laboratories having undetected errors and may additionally provide educational benefits. LGC Standards® is an international, United Kingdom Accreditation Service- (UKAS) accredited provider of commercial Proficiency Testing Schemes (PTS). Their scheme relevant to forensic toxicology is the Forensic Blood Toxicology (QUARTZ) PTS, in operation for more than ten years. This presentation provides a long-term review of QUARTZ to evaluate the effectiveness of the scheme for detecting analytical bias and for improving laboratory performance, its overall fitness-for-purpose. Review of a fitness-for-purpose scheme should establish an indication of the level at which participants are performing.
Method: Results of the PTS from r
Original languageEnglish
Number of pages1
Publication statusPublished - 2014
Externally publishedYes
EventAmerican Academy of Forensic Sciences 66th Annual Scientific Meeting - Washington State Convention Center, Seattle, United States
Duration: 17 Feb 201422 Feb 2014
https://www.aafs.org/meetings/future-past-aafs-meetings/ (List of annual meetings)


ConferenceAmerican Academy of Forensic Sciences 66th Annual Scientific Meeting
Country/TerritoryUnited States
Internet address


  • proficiency scoring
  • proficiency testing
  • forensic toxicology


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