Vorwerk Forensic Psychology Logo (Horizontal)

Vorwerk Forensic
Psychology, Inc.

Expert Board Certified Forensic

Psychology Services in California

Forensic psychologists Dr. Michelle Vorwerk and Dr. Jessica Roos

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

            – 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. Michelle L. Vorwerk is a forensic psychologist with over 20 years of experience in evaluating and diagnosing mental disorders. Dr. Vorwerk is one of a select few 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 is intended to signify the highest levels of expertise and practice in the area of forensic psychology.

Dr. Vorwerk specializes in sex offender risk assessments, criminal responsibility cases, 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


Jessica L. Roos, PsyD 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. Regarding her treatment of forensic clients, she provides 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’ expertise in forensic psychology is evident in her ability to form comprehensive, objective, unbiased opinions and to communicate and articulate those opinions to the trier of fact in clear and understandable terms.

Dr. Jennifer Roos

"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 more 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