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After taking a drug, it enters a person’s blood-stream. Next, the drug transfers to the hair follicle, and into the hair strand. As a result, The drug becomes trapped in the hair strand. As the hair strand grows, the drug will move further away from the scalp. Over time, it gets washed away, cut off or falls out. The Hair Drug Test can detect drugs for a period of up to 12 months. But this does...

After taking a drug, it enters a person’s blood-stream. Next, the drug transfers from the liver to the bladder. As a result, what remains of the drug gets excreted out of the body through urine. First, we perform a screen of the sample in the lab. The screen is very accurate. As a result, it provides an advantage over the urine instant Point of Care (POC) Drug Test. The screen takes 1 to 2 work...

How does the Paternity DNA Test work? We analyse many genetic locations in a paternity test. A person possesses two (of many possible) alleles at each genetic location. We identify the alleles by numbers. As a result, this looks like a list of 2 columns of numbers for each person. These 'numbers' come from the parents at conception. One comes from the mother and one from the father. Next, we li...

Check out some of the chain of custody features Crystal Health Group implement and the different sample types that can be collected to be used for DNA, Drug and Alcohol testing. Crystal Health Group: www.crystal-health.co.uk/ DNA Testing Services: www.dnatestingclinics.co.uk/ Drug Testing Services: www.drugtestingclinics.co.uk/ London Drug Testing Services: www.drugtesting.london/

This video briefly illustrates some of the tamper evident features employed by Crystal Health Group when collecting urine samples for the purpose of drug and alcohol testing. This demonstrates Crystal Health Group commitment to maintaining chain of custody over urine drug test samples ensuring all of our drug tests are legally defensible. Crystal Health Group: www.crystal-health.co.uk/ DNA Test...

Dr Nichola McChrystal introduces drug and alcohol testing service. This includes the following tests: Instant Point of Care Urine Drug and Alcohol screening - used in random workplace and pre-employment drug testing. Instant Point of Care Oral Fluid Drug and Alcohol screening - used in random workplace and pre-employment drug testing. Legally defensible Urine Laboratory and Confirmation Testing...

Explaining how DNA is used to determine biological relationships between individuals. We explain how DNA Paternity and DNA Maternity tests are carried out and the difference between these and more complex relationship DNA Tests such as Sibling Analysis. Crystal Health Group: www.crystal-health.co.uk/ DNA Testing Services: www.dnatestingclinics.co.uk/ Drug Testing Services: www.drugtestingclinic...

Demonstration on how to take a mouth swab for a DNA paternity test. The sample collection for DNA tests is carried out using sterile swabs either at a DNA Testing Clinic, a certified mobile sample collector or by using one of our DNA test self collection kits. You can also order an accredited Paternity DNA Testing kit from Boots.com Crystal Health Group: www.crystal-health.co.uk/ DNA Testing Se...