Workplace Drug Testing

An independent forum for all issues relating to workplace drug testing

A focal point for the exchange of ideas and information about Workplace Drug Testing, bringing together users and providers of these services, plus the equipment suppliers.

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.

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Guidelines for Oral Fluid (version 001 - March 2011)

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Experts of the EWDTS-guidelines:
Michaela Neuhofer, Austria (chair), Michael Böttcher, Germany, Duncan Carmichael, UK, Nadia Fucci, Italy.

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.

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Experts of the EWDTS-guidelines:
Alberto Salomone, Italy (chair), Joey Gareri, Canada, Lolita Tsanaclis, UK, Christian Zuniga, UK.

European Laboratory Guidelines for Legally Defensible Workplace Drug Testing

Urine Drug Testing

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Experts of the EWDTS-guidelines:
Sanna Taskinen, Finland (chair), Tessa Bosch, The Netherlands, Nadia Fucci, Italy, Mark Piper, UK, Wolfgang Weinmann, Switzerland.

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


Guideline committee is currently working with the experts to update the current guidelines (urine, oral fluid and hair) and to create a new one for blood.
Latest in November 2014 (6 months before biannual symposium): The updated guidelines will be communicated within the members of EWDTS for feedback.

May 2015: New updated guidelines will be published at the EWDTS symposium 2015.


Please send any comments on any of the guidelines to the chair of guidelines committee (sanna.taskinen@vita.fi).

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.

EWDTS guidelines are drafted by the guidelines committee:

  • Sanna Taskinen (Chair)
  • Nadia Fucci
  • Michaela Neuhofer
  • Wim Schielen