Henry Harvey Littlejohn, FRCSEd, FRSE (7 October 1862 – 15 August 1927) (widely known as Harvey Littlejohn ) was a Scottish academic, forensic scientist and medical officer of health, who followed in the footsteps of his father, Henry Duncan Littlejohn, as Professor of Medical Jurisprudence at. the University of Edinburgh. This position also entailed acting as Police Surgeon to the City of Edinburgh and Advisor to the Crown. In this capacity he was called upon as an expert witness at high profile criminal cases.