German president Frank-Walter Steinmeier signed off on
legislation a fortnight ago to set a limit for driving under the
influence of cannabis, with the new legal limit that's now
taken effect being 3.5 nanograms of THC per millilitre of
blood.
THC or tetrahydrocannabinol is the psychoactive ingredient of
cannabis, which produces a high or euphoric feeling in the consumer
of the plant. And as cannabis reacts differently to the body than
alcohol does, the process of setting THC intoxication level limits
is not as straightforward as booze.
Unlike drink driving measures in Australia,
drug driving laws, which have only existed in terms of roadside
testing since Victoria introduced its regime in 2004, with NSW following
in 2007, these laws don't ascertain a level of an illegal
substance in a driver's system, but instead merely show
presence.
