News & Insights

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.

The chain of custody or chain of evidence process ensures that the sample tested can be confidently linked back to the individual and that it has not been altered, contaminated or confused at any stage.

This guide is to reassure that appointments are usually calm and straightforward, and sample collection is generally quick and painless.

Selecting between hair and nail testing is not simply a practical decision. It can directly influence the clarity, timeframe and evidential strength of the results obtained. Both methods are widely used in family law and safeguarding cases because they provide […]