Does anyone know the possible repercussions of having coke showing in blood samples? I was arrested for going through two lots of red lights! I spent the night in the cells after having a blood sample taken. Ave been discharged awaiting blood results. What are the subsequent consequences likely to be after the results come back positive? Can I claim mitigating circumstances as I am not in a good place at the moment and waiting to see a counsellor? I have only been driving two years but have a clean record until now. Any information about what to expect would be useful.