Lewis Yablonsky - Emeritus Professor of Criminology



Lewis Yablonsky
Emeritus Professor of Criminology
California State University - Northridge 2311 4th St., Ste. 312
Santa Monica, CA 90405

(310) 450-3697

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Lewis Yablonsky
Emeritus Professor of Criminology

Expert Profile
Practice Areas

(310) 450-3697


My research and experience over the past 50 years as a criminologist has involved me in almost every facet of the American crime problem. My research into all aspects of crime and delinquency, my therapeutic treatment of both criminals and juvenile delinquents in prisons and psychiatric hospitals, the writing of numerous books-including two widely adopted textbooks, my work in the field of crime prevention, and my role as a professor at several major universities has provided me with a wide array of knowledge that qualifies me for the role of legal consultant and expert witness in the criminal justice system. In the context of this background and experience, I have participated In the criminal justice system through aiding lawyers in the preparation of testimony, given depositions, and testified in court as an expert witness in over 35 judicial cases. I have been approved to serve as an Expert-Witness on issues of violent gangs, homicide, domestic violence, and business security in the Superior Courts of Los Angeles County; San Diego County; San Francisco County; Riverside County; Ventura County; Sacramento County; Orange County; Pima County (Tucson); and New York County.

Following are some of the cases I have participated in as a legal-consultant and expert-witness: A violent gang murder trial in New York County Court. Based on my book THE VIOLENT GANG I testified on the structure and behavior of violent gangs; Consulted In preparation of testimony related to a Hells Angels Gang murder; Testified on the nature of gang behavior in a trial involving the first degree murder of a gang member by another violent gang member in Hollywood; Consulted on a case related to the value of security guards in a homicide incident in a community center; Participated in a case related to the responsibility and liability of a Home Savings and Loan bank in the robbery of a client outside the bank; Participated in a case involving the legal responsibility of a shopping center corporation related to a gang youth shot in front of an arcade in the mall by another gang member; Consulted and testified in a case related to an insurance companies legal responsibility for a client's relative involved in an accident that killed a woman. Based on my book GANGSTERS I have consulted and testified in over 15 cases involving gang shootings and the determination of the definition of a gang member with regard to the California "gang enhancement law" 186.22; Participated as an expert witness in a case involving the murder of two police officers by a gangster drug-dealer; Testified as an expert witness in the penalty phase of a gangster convicted of 1st degree murder; Served as an expert witness on a case involving alleged domestic violence; For an insurance company defending against an alleged fraudulent case of vandalism damage; and most recently participated in several gang homicide cases involving my testimony on the level of participation of the defendants in violent gang membership and behavior.