Workplace Testing Procedure

Randox Testing Services provides drug and alcohol testing for various safety-critical workplace industries. To ensure reliable results, our drug and alcohol screening procedure is coherent with strict chain of custody procedures to ensure sample integrity and traceability from point of collection to result reporting.

Below outlines the process of testing for those in the safety-critical industries.


Initial Consultation with Randox Testing Services

Our workplace drug and alcohol screening procedure begins with a free consultation with one of our experienced business development executives. During the consultation, we will discuss your testing requirements and put together a package tailored to meet the needs of your business.


Create a Workplace Drug and Alcohol Testing Policy

As an employer wishing to implement drug and alcohol testing in the workplace you are required to have a substance abuse policy. Our professional policy review service is available to help you create or modify a new or existing workplace drug and alcohol testing policy.

Providing you with the correct tools and information, we ensure you have an effective policy in place to allow you the right, an employer, to carry out employee testing. We also ensure the rights of the employee are protected by ensuring a policy which is clear and concise. During this process, we will discuss the types of workplace testing you wish to carry out to ensure your policy suits your business needs.


Implement Workplace Drug and Alcohol Testing

We provide comprehensive training and education to help you to communicate the new policy to your employees and management staff. We also provide extra training services to educate your management team on the significance of drug and alcohol misuse in the workplace.


Sample Collection

After gaining informed consent from employees, our network of trained and experienced sample collection officers collect samples using your chosen method of testing at a time and location that suits. Alternatively, we offer training and education to allow your own staff to collect samples from employees.

Throughout sample collection, sample integrity is maintained following strict chain of custody criteria. Unique identification numbers are assigned to employees to ensure employee names or company information is not known by laboratory staff performing sample analysis.


Sample Analysis

Employee samples are transported to our state-of-the-art laboratory. Upon arrival they are assessed to ensure sample integrity has been maintained, then screened using our innovative Biochip Array Technology to ensure accurate and reliable results.

Upon analysis of employee samples, required actions will differ depending on the result:


Employee is cleared of having drugs or alcohol in their system

Presumptive Positive (Non-Negative)

Indicates presence of a particular substance. Further analysis is required.

Confirmatory Testing

Carried out on presumptive positive samples to confirm drug class and concentration


If a positive result is received after confirmatory testing, a report will be written stating which drugs were present and at what concentration.

Testing tube

Results Reporting

Results are reported confidentially via our secure web portal. Alternatively, another method can be chosen to suit your needs.


  • Network of trained and experienced collection officers
  • Sample collection can be arranged within 1 working day
  • Samples can be collected from your location or via a collection site for your donors to attend. We also have a mobile testing unit which can be utilised should you wish to carry out testing off-site.
  • 24 hour call out service for emergency sample collections (available 24/7 – 365 days a year) an experienced collection officer will arrive within a maximum of 2 hours to perform a sample collection

Contact us to find out
more about our services

We offer a fully confidential and no obligation initial quotation