Our expert says:
I'm not sure exactly what you mean by your question, G. Obviously a person CAN drive right after using dagga, or even while using it --- it's not a good idea, of course, because driving is hard enough without being under the influence of any mind- and reaction-altering drug. And we vary as to how long afterwards we may still be impaired by it.
But you seem to be asking how soon afterwards it could be DETECTED by some form of test. This would also vary according to dose --- ie how much smoked, or devoured, how smoked, and how strong the stuff was. As for 30 days, possible, but depends on test used and how much they really want to find it
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.