News & Insights

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.

Terms such as “false positive” and “false negative” often cause confusion from not recognising the different stages of testing and how results are confirmed and interpreted.

A legally defensible sample must be collected correctly, securely handled, analysed using appropriate procedures and reported in a way that can be understood by the court or those relying on the evidence.

Different sample types provide different types of information. Some focus on very recent use, while others offer a longer-term picture.

Certis BioLabs works with UKAS-accredited laboratory partners to ensure that testing is carried out within a controlled and recognised quality system.

All results are interpreted alongside all relevant information available, including information disclosed by the client and other factors that may affect how the result should be understood.