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Court-ordered drug tests are performed every day across the UK for a variety of reasons, from local authorities making decisions about a child’s welfare, to family courts handling custody disputes.
At AlphaBiolabs, we appreciate that not all legal clients are aware of which drug tests can best determine an individual’s pattern of substance abuse.
In this article, we look at the testing methods available for a legally-instructed drug test, what different biological samples can tell us about a person’s drug use, and the common ways that people try to cheat drug tests.
Drug testing methods
Each sample collection method offers a differing insight into an individual’s drug use.
From oral fluid and urine, both of which can tell us which drugs an individual has consumed within the last few days, to hair and nail drug testing which can help us determine whether drugs have been consumed in the months prior to samples being collected.
The detection windows for each method of sample collection are:
- Head hair: up to 12 months, with month-by-month segmentation available
- Body hair: overview of up to 12 months
- Nails: six-month overview (fingernail clippings) or 12-month overview (toenail clippings)
- Urine: up to four days after consumption
- Oral fluid (saliva): up to 48 hours after consumption
The consistent rate at which head hair grows means that head hair analysis is the only way of determining a pattern of drug use, using segmented analysis to identify trends such as an increase or decrease in usage over time.
When an individual consumes drugs, they are passed into the bloodstream, and the parent drug and a proportion of the drug’s metabolites enter the hair follicle.
When the hair is subjected to analysis at the toxicology laboratory the parent drug and its metabolites can be identified within the hair, enabling us to determine a pattern of drug use over a defined period, depending on the length of hair selected (1cm of head hair = one month of growth).
However, a client instructing a legal drug test may choose to combine head hair analysis with other tests for a complete picture of an individual’s consumption.
How do people try to cheat drug tests?
For drug test results to be admissible in court, samples must be collected under strict chain of custody conditions, reducing the likelihood of tampering, and ensuring samples are collected from the right people.
Yet there are still some individuals who will attempt to ‘cheat’ a drug test; something which can be easily prevented by using a trained sample collector.
Common methods include everything from bringing another person’s ‘clean’ urine sample to a collection appointment, to wearing a wig, or attempting to pass off someone else’s pre-cut hair sample as their own.
People will even shave their head or cut their nails to prevent samples being collected.
While these methods are ineffective, it is important to note that excessive bleaching, dyeing, perming, or straightening of the hair has the potential to impact a drug test result.
For this reason, reputable testing laboratories like AlphaBiolabs will always ask for full disclosure of any recent hair treatments so that this can be taken into consideration when preparing the results.
Whatever the circumstances, a trained sample collector – such as those in AlphaBiolabs’ nationwide sample collection network and walk-in centres – will know how to spot the signs of tampering and will be able to collect an alternative sample on the day if required (e.g. body hair instead of head hair).
However, if the court has ordered a specific sample for testing that cannot be collected on the day, an alternative appointment may need to be arranged for a later date to collect the correct sample.
Where can I get a drug test for court?
Understanding which drug testing methods will best suit your client’s circumstances, along with the ways in which people try to cheat the test, will help you secure a satisfactory outcome for your case.
At AlphaBiolabs, we have over 15 years’ experience providing court-approved drug testing for members of the public, family law professionals and local authorities, from sample collection to laboratory analysis and reporting.
We also offer free sample collection for legally-instructed drug tests from any of our nationwide walk-in centres.
Legal clients can claim 15% off AlphaBiolabs’ legally-instructed drug testing services until 30th June 2022. Simply cite DRUG15 when requesting a quote.
For expert advice on which drug test is best for your case, call the AlphaBiolabs Customer Services team on 0333 600 1300 or email email@example.com and a member of the Legal Team will be in touch.
You can also learn more about hair drug testing by watching our latest webinar: Head hair drug testing – how does it work?
Drug testing for legal matters
Request a quote for your legally-instructed drug test now.