• Specimen Collection Guidelines (October 2011)
    • These Guidelines for Specimen Collection Procedures therefore cover the general principles for Chain of Custody, the specific features for each specimen type (urine, oral fluid and hair), and the competency of the collecting officers.
    • Where immediate test results are required Point of Collection Tests (POCT) can be utilised, but the principles and procedures for specimen collection outlined in these guidelines still apply.
  • Guidelines for Oral Fluid (version 001 - March 2011)
  • Drug and Alcohol Testing in Hair, Collection and Analysis (August 2010)
    The guidelines for Drug and Alcohol Testing in Hair, Collection and Analysis were submitted to EA (European co-operation for Accreditation) for approval on 14 June 2010. These guidelines were first published in Drug Testing and Analysis, August 2010.


Please send any comments on any of the guidelines to the chair of guidelines committee (, or use the appropriate form.

Please give comments on three levels:

  1. It would be better if you change... including change in the language.
  2. I strongly recommend this/these changes...
  3. If you do not change this/these, I think the guidelines are unacceptable.

European Laboratory Guidelines for Legally Defensible Workplace Drug Testing

1.0 Urine Drug Testing

These guidelines for Legally Defensible Workplace Drug Testing have been prepared by the European Workplace Drug Testing Society (EWDTS). They are based on the UK Guidelines drawn up by a Steering Group representing the following UK analytical laboratories:

  • Cardiff BioAnalytical Services
  • Department of Forensic Medicine & Science, University of Glasgow
  • Forensic Science Service
  • JMJ Laboratories
  • LGC
  • London Toxicology Group
  • Medscreen
  • Newcastle Royal Infirmary Toxicology Department
  • OmniLabs
  • Scientifics
  • Tackler Analytical

The European Guidelines are designed to establish best practice procedures whilst allowing individual countries to operate within the requirements of national customs and legislation. The detail within the appendices will therefore vary from country to country.
The EWDTS is the owner of these Guidelines (requires copyright statement).
These Guidelines relate only to the collection of urine samples, their laboratory analysis, and subsequent interpretation of the results.
The EWDTS guidelines have been approved by the Laboratory Committee of EA (European co-operation for Accreditation) as a technical document (category 4). and they can be accessed on their website

EWDTS guidelines are drafted by the guidelines committee:

  • Per Björklöv (Chair)
  • Ronald Agius
  • Helen Vangikar
  • Michael Boettcher
  • Pascal Kintz


Further reading

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