Dr. Clingan is a faculty member of the Department of Psychology and Criminal Justice of the Faculty of Pierce College, Washington State, United States. He undertook his Psy.D in the Department of Psychology in the School of Organizational Leadership at the University of the Rockies, Denver, Colorado, United States. Dr. Clingan specializes in preeminent psychology/cognitive behaviors within the field of criminology. He lectures criminal justice, policing, crime and justice, concepts of criminal law, problem based research, corrections and psychology for criminal justice declared students. His psychology work is influenced based on the theoretical frameworks of Dr. Paul Ekman and measuring nonverbal communication.

Dr. Clingan is interested in quantitative methodologies and test and measurements of nonverbal communication. He also is keen on cognitive behaviors relating to micro-facial expressions influenced by discourse language research, especially criminal trial research during the Voir-Dire process. He has conducted the only quantitative descriptive comparative study during a live criminal trial in the field of psychology research to the education of psychology in, based on the study of emotions and theories of Dr. Paul Ekman.