Our services
Drug, Alcohol and DNA Testing Services
There is no single drug or alcohol test that is right for every situation. Different testing methods are used to answer different questions, depending on the timeframe involved, the substance being considered and any legal or safeguarding requirements.
Some tests are designed to identify recent substance use, while others provide insight into patterns of use over a defined period. The most appropriate testing method will depend on the purpose of the testing and the context in which results will be used.
Certis BioLabs offers a range of drug and alcohol testing methods, with all analytical testing carried out by UKAS-accredited laboratory partners. This page provides a high-level overview of the testing options available, with more detailed information available on each individual testing method page.
Explore the different testing methods below or contact our team for guidance.
Overview of Drug & Alcohol Testing Methods
Different drug and alcohol testing methods exist because no single approach can answer every question.
Some tests are designed to provide a snapshot of recent substance use, while others are used to assess substance use across a longer, defined timeframe. The choice of testing method may be influenced by:
Court or Legal Instructions
Safeguarding Considerations
The type of substance involved
Individual circumstances and sample availability
Understanding how each testing method works can help ensure that results are used appropriately and interpreted in context.
Blood Testing (PEth)
Blood testing using PEth (Phosphatidylethanol) is used to identify recent alcohol consumption.
PEth is a specific biomarker that forms only in the presence of alcohol and is typically used to assess alcohol intake over the preceding few weeks. This method is commonly used where recent alcohol use needs to be evidenced clearly.
All blood testing is carried out by a UKAS-accredited laboratory partner, with results presented in clear, court-compliant formats where required.
Choosing the Right Testing Method
The most appropriate testing method depends on the circumstances of each case. Factors that may influence the choice of test include:
The timeframe being considered
The type of substance involved
Court, legal or safeguarding instructions
Sample availability and suitability
Certis BioLabs does not provide legal advice, but our team can help explain the available testing options and how they are typically used, so informed decisions can be made.
How We Support You
Certis BioLabs is focused on clarity, accuracy and proportionate reporting.
Clear explanations of testing methods and options
Support throughout the testing process
Analysis carried out by UKAS-accredited laboratory partners
Clear, court-compliant reporting where required
Our approach is designed to ensure results are handled responsibly and communicated clearly.
What Type of Test Do I Need?
Not sure which test is right for your situation?
Contact our team to discuss your circumstances and we will recommend the most appropriate testing method.
What our customers say
FAQs: All You Need to Know
What are the different types of drug screening tests?
Drug screening tests include hair, nail, urine and blood testing, each offering insight over different timeframes.
Which test shows substance use over a longer period?
Hair and nail testing are commonly used where substance use across a defined period needs to be assessed.
Which test shows recent drug or alcohol use?
Urine and blood testing are typically used to identify more recent substance use.
Is all testing methods court-compliant?
Reports are prepared to court-compliant formats and are based on analysis carried out by UKAS-accredited laboratory partners.
Can you help me choose the right test?
Yes. Our team can explain the available options and how they are commonly used.