An Island Mountie has been exonerated in connection with a slow-speed moped chase in Duncan and a provincial court judge has scolded the prosecution. Const. David Buchanan was charged with dangerous driving causing bodily harm after a moped chase on Feb. 20, 2016, that left the moped driver injured. After a three-day preliminary inquiry at Duncan provincial court in June, Judge Justine Saunders threw out the charges and criticized Crown prosecutors for a dearth of evidence.