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Vorwerk Forensic Psychology, Inc.

Expert Board Certified Forensic

Psychology Services in California

Board Certified Forensic Psychology

We apply our expertise in the science and profession of psychology to critical legal issues and questions. Our specialized knowledge of psychology allows us to advise and consult effectively on a variety of legal matters such as:

  • Forensic Evaluations

            – Sex Offender Risk Assessment

            – Violence Risk Assessment

            – Personal Injury

            – Mental Health Diversion

            – Sentencing Mitigation

            – Youthful Offender/Franklin Evaluations

            – Juvenile Transfer Cases

            – Criminal Responsibility Cases

            – Civil and Criminal Competencies

            – Conservatorship Evaluations

  • Psycho-legal Attorney Consultation
  • Expert Witness Testimony
American Board of Forensic Psychology Logo
American Board of Professional Psychology Logo
Forensic Mental Health Association of California
American Psychological Association

Want to know more? Contact us for more information.

Our Services

Dr. Michelle L. Vorwerk
Dr. Jessica L. Roos
& Dr. Lauren E. Vickerman

Dr. Michelle L. Vorwerk is a Forensic Psychologist with over 20 years of experience in evaluating and diagnosing mental disorders. She has conducted thousands of evaluations and testified in well over 100 cases. 

She is sought for her deep understanding of the landscape of law and psychology, her experience and skill at testifying in a manner knowledgeable and accessible to juries.

Dr. Vorwerk is Board-Certified in Forensic Psychology, among fewer than 1% of American Licensed Psychologists who have undergone the rigorous training and examination process necessary to obtain Board Certification in Forensic Psychology from the American Board of Professional Psychology (ABPP). This credential signifes a high level of expertise and practice in the area of forensic psychology. 

Dr. Vorwerk specializes in civil litigation mental distress, sex offender risk assessments, criminal responsibility cases, personal injury, mental health diversion, psychological mitigation, juvenile and youthful offender cases, and civil and criminal competencies. 

She has been qualified as an expert witness for both the defense and prosecution in numerous jurisdictions in California.

Dr. Michelle Vorwerk


Dr. Roos is a licensed psychologist specializing in forensic evaluations. Dr. Roos demonstrates a passion for both evaluating and treating individuals involved in the criminal justice system. 

Having worked within the prison system for four years, she has a unique perspective and experience in both treating and evaluating those involved in the criminal justice system.

In clinical practice, she conducts crisis management, suicide-risk assessment, and individual therapy to severely mentally ill incarcerated individuals in prison. 

Dr. Roos’ experience in forensic evaluations includes assessing cognitive, behavioral, emotional, and personality functioning, along with assessment of other factors related to the forensic evaluation. 

Dr. Roos conducts forensic assessments in both the criminal and civil arenas, including personal injury.

Dr. Jennifer Roos


Dr. Vickerman is a licensed psychologist specializing in forensic evaluations. 

Her passion lies in the intersection of psychology and the criminal justice system, and her work goes beyond routine evaluations, delving into the complexities of understanding human behavior within legal contexts. 

By exploring these ties, she strives to contribute valuable insights that enhance the understanding of individuals involved in the criminal justice system. 

Dr. Vickerman’s forensic evaluation experience includes the assessment of a number of factors such as emotional, behavioral, cognitive, and personality functioning. 

Dr. Vickerman prides herself on delivering reports that are not only detailed but also unbiased with the goal of providing a clear and comprehensive understanding of the psychological aspects relevant to legal cases, clearly articulating these opinions in a courtroom setting. 

"A law is valuable not because it is law, but because there is right in it."

– Henry Ward Beecher

Some of our recent clients:


“Dr. Vorwerk has testified for me on several cases. Her credentials and expertise impress both judges and juries, but even more important, she knows how to make the most difficult concepts easy to understand.”

~ Attorney (name withheld by request)

Forensic Psychology Consultation

Dr. Vorwerk’s incredibly detailed, sympathetic, and insightful report on a recent federal case quite literally took years off my client’s sentence. Her report was quoted by the Judge, and gave him the tools to depart from the guidelines.

~ Joel Garson, Criminal Defense Attorney

Contact Us:

Vorwerk Forensic Psychology, Inc.

27525 Puerta Real, 

Ste. 300-223

Mission Viejo, CA