Dr C. Gabrielle Salfati is part of the first group of people who emerged within the new field of Investigative Psychology, and was instrumental in its development as an international research field on the empirical analysis of violent criminal behaviour, in particular the advancement of the science of offender profiling. Her research focuses primarily on the issue of classification of homicide based on the actions the offender engages in at the crime scene, the characteristics of victims, and the characteristics of offenders. This work relates to parallel projects looking at the issues of the development and the consistency of violent behavior across an offender's criminal career and other aspects of their non-criminal lives. This work also explores the narratives of offenders who have committed homicide. The main objective of this research is to establish a sound methodological and scientific basis for police decision making tools such as Offender Profiling. Most of this work is now being developed within an international framework through collaboration with major national and international research centers and law enforcement agencies.