Hi, New user here so please be kind if I've incorrectly started this thread. My 19-year-old son on green Ps has been charged with driving under the influence of cannabis. He smoked 2 cones of marijuana at about 10 pm one night & was randomly tested the next morning at around 10 am. He stated he definitely was not affected by the cannabis at the time of driving. He has to represent himself as we cannot afford a solicitor and I'm hoping we might be able to get some help on how to self-represent. He tested positive at the roadside & was taken to the station where the machine didn't work so a further saliva sample was sent away for testing which returned positive. We have never been to court and am finding the process extremely daunting so any help would be greatly appreciated.