I was watching RBT last night and noticed an interesting outcome for people caught with evidence of cannabis in their system. Essentially they were told that they would be going to court, and that they cannot drive for 24 hours. Now I know that THC stays in the system for a long time, and that roadside testing does not measure quantity, only the presence of, THC. So the obvious implication of that is that 24 hours later, they would probably still have THC in their system, but they have been given consent to drive by the police, even though the police know that THC would probably still be present! So essentially they are being given an "exemption" from drug driving laws. Whilst I don't support people tearing around ripped to the gills, it would be interesting if this was a legal loophole to get around the laws as they stand.