Drug testing

There are various ways of testing to see if someone has been using drugs.

One of these is using hair, which shows what drugs have been used over a period of months, whereas testing with urine and saliva (oral fluid) only tells you whether someone has used drugs over the last few days.

Do you want to know drug use over a long period?

The key benefit of drug testing using hair samples is that it can show the trend of a habit over time and prove use or non-use over an extended period.

Hair drug testing can identify what drugs were used. It also makes evasion of detection very difficult if not impossible.

There are various uses for drug testing in hair. It can help to monitor the success of treatment in a clinical setting.  In the workplace, hair analyses are often requested to evaluate the history of someone’s use of drugs, for example in pre-employment and workplace testing. Hair testing is also used in police investigation cases or to assess drug use or abstinence for medical legal purposes. It can be particularly important where safety and security really matters, for example in transport, where hair analysis has often been  preferred over urine and oral fluids because of its much longer window of detection.

Drug testing using oral fluid

Oral Fluid testing is an alternative to blood and has the advantage of being non-invasive.

Oral fluid has advantages over urine and is markedly easier to collect.

Drug testing laboratories

Like any chemical analysis, laboratory tests for drugs have limitations, and results must be considered together with other evidence, such as an interview or regular monitoring of the individual. Also, a one-off test in some cases may not be sufficient to produce a definitive interpretation, for example near the cut-off point for detection.


Cansford Laboratories provide comprehensive services with outstanding and relevant credentials (UKAS Accredited to ISO/IEC 17025) and involved in hair drug testing since 1993.

We can advise you on which method of detection is the best and we bring you the latest ‘state of the art’ drug detection and measurement of Hair and Oral fluid samples, to determine the presence of illegal drugs & substances of abuse.

We are proud to deliver the quickest analysis turnaround times in the UK and meaningful witness statements – 3 days, from sample receipt to delivery of the report.

We offer all this at competitive prices and with exceptional customer service.


Posted in Alcohol testing, Drug testing, Hair drug testing, Oral fluid testing, Workplace Drug Testing Tagged with: , , , ,