Drug Influence Recognition & Field Impairment Testing Aide Memoir - 3rd Edition May 2008, A guide for police officers, forensic physicians, criminal justice departments, magistrates, lawyers, educators and researchers. Author Stephen G Collier. ISBN (10) 0-9550043-2-2 ISBN (13) 9780955004322

 Impairment Testing Pupilometer

 Drug Reference Card (A5)

 Small Drug Reference Card