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Joined 1 year ago
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Cake day: June 10th, 2023

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  • The alcohol test is carried out using a breathalyser and, if positive, is confirmed by a blood sample. This works well because it measures the concentration of alcohol still in your blood. A positive test means that the driver is (still) drunk and not fit to drive.

    The test method for THC is not as accurate. A urine sample can still be positive 3(!) days after smoking a joint. This is even worse with hair samples or if the person smokes occasionally.

    Limiting testing to THC alone would be a sensible decision. At the moment they also test for THC-COOH, which is a metabolic by-product and lasts much longer in the body.

    Without a change in testing methodology, you could lose your driving licence on Monday because you smoked a single joint on Friday. A bottle of vodka on Saturday? No problemo.