Ronald E. Henson, PhD is the Principal Consultant, with offices in Illinois and Florida. Dr. Henson's consulting provides drug / alcohol testing evaluations, research, and expert testimony. He has been found qualified in field sobriety testing, drug & alcohol testing, physiology / pharmacology in criminal, civil, military and employment law cases across the United States. Dr. Henson has served on research committees related to law enforcement, drug & alcohol testing using breath, blood, urine, saliva, hair, and field sobriety testing (drugs & alcohol). Clients have included fortune 500 companies, professional athletes (NBA & MLB), dignitaries, employee unions, and government entities.