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Forensic Blood Toxicology (QUARTZ)

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  • UKAS accredited proficiency testing scheme
  • The LGC QUARTZ scheme is aimed at laboratories undertaking forensic toxicology and coroners work. Test analytes and case scenarios included in the scheme are discussed regularly with the Advisory Group.
  • The scheme offers the choice of a number of test materials comprising blood and urine spiked with drugs and metabolites. Case scenarios provided for interpretation covered include sudden and suspicious deaths, drug facilitated sexual assaults (DFSA), impaired driving and other relevant cases.
  • There is an Alcohol Technical Defence (ATD) exercise that allows practitioners to demonstrate competency in performing these types of calculations.
  • Participation in QUARTZ will provide independent performance assessment and confidence that results are meaningful and accurate. Consistent good performance will allow laboratories to demonstrate to third parties, customers, regulators and accreditation bodies the quality of their results.  
  • The operation of our QUARTZ scheme is supported by an Advisory Group consisting of members of the professional bodies, scheme participants, and others experienced in the field.
  • Scheme operates from April to March


Round dates


Despatch date

Reporting deadline

QZ07604 Mar 201923 Apr 2019
QZ07720 May 201905 Jul 2019
QZ07816 Sep 201901 Nov 2019
QZ07925 Nov 201917 Jan 2020
QZ08002 Mar 202017 Apr 2020

Driving Impairment 2  products available
Forensic Toxicology 6  products available


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