The client was charged for driving above the specified limit in cannabis. The nurse had taken a blood sample despite pain and discomfort caused from abortive attempts to find a vein. It was submitted there were medical reasons for abandoning the specimen procedure and the continuity of the chain of custody in relation to the blood sample was in dispute. Laura Heywood (reviewing lawyer) persuaded the prosecution to discontinue the charges after they failed to provide the SFR2 (level 2 forensic report) and data pack for the use of the defence expert.