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Discover what urine testing can reveal about recent drug and alcohol use, its limitations and when other testing methods may be more appropriate.

Discover how hair strand alcohol testing works, what it can reveal about drinking patterns over time and when it may be appropriate alongside other testing methods.

Discover what to consider before booking a private drug test, from choosing the right testing method to understanding timeframes, confidentiality and how results will be used.

Discover what happens if you refuse or cannot attend a court-ordered drug or alcohol test, including consent, sample collection and the role of the testing provider.

It is set to be a busy autumn for Certis BioLabs, with our team attending events across the UK in Autumn 2026. Our team will be available to discuss your testing requirements, and answer your questions.

In some circumstances, passive exposure may occur without an individual being aware. Individuals may raise concerns about whether being around someone using drugs, or being in an environment where substances are present.

The detection window for drug, alcohol marker or related substance can vary depending on the substance, the sample type, the individual being tested and is not an exact timeline.

How long drugs or alcohol remain detectable depends on several factors, including the substance involved, the sample type analysed and individual circumstances.