“A better understanding of crime is a better understanding of ourselves”
– Dr. John Matthias
For over 25 years Dr. John Matthias has provided quality psychological services for:
forensic evaluations & risk assessments
years Dr. Matthias has worked as an adjunct professor at the University of Nevada, Las Vegas clinical psychology doctoral program
doctoral students Dr. Matthias has trained at the University of Nevada, Las Vegas
Meet Dr. John Matthias
Dr. John Matthias is a licensed clinical and forensic psychologist with over twenty-five years’ experience in both clinical and forensic work. He has performed over 500 forensic and psychological evaluations and risk assessments for the courts since 1996, assessing the risks for violent and sexual recidivism for both adults and juveniles. He serves as an expert witness for the federal government, and he has consulted on numerous high-profile cases for District Attorney’s offices and defense attorneys in several states.
In the forensic area, Dr. Matthias has developed expertise in personality assessments, hidden behavioral motivations, complex trauma and criminal psychology. In the clinical realm, he has worked with numerous victims of abuse and trauma, including with survivors of the Las Vegas shooting massacre in 2017. He also received his Master’s degree in Marriage, Family and Child counseling from the University of Southern California and he has worked with hundreds of families, couples and children over the years. He supervises UNLV doctoral students on forensic assessments, clinical case formulation, and various therapeutic approaches to clinical work.
In the forensic area, Dr. Matthias has developed expertise in personality assessments, hidden behavioral motivations, complex trauma and criminal psychology. In the clinical realm, he has worked with numerous victims of abuse and trauma, including with survivors of the Las Vegas shooting massacre in 2017. He also received his Master’s degree in Marriage, Family and Child counseling from the University of Southern California and he has worked with hundreds of families, couples and children over the years. He supervises UNLV doctoral students on forensic assessments, clinical case formulation, and various therapeutic approaches to clinical work.
Dr. Matthias graduated with honors in philosophy from Princeton University, and he won the prestigious McCosh Thesis prize while there. In high school he graduated valedictorian from a large public high school in Chicago where he was chosen to participate in a ground-breaking valedictory study that continues to this day. He received his doctorate from the University of Southern California.
Dr. Matthias has been an adjunct assistant professor in the University of Nevada Las Vegas clinical psychology doctoral program since 2007 and he has trained over 25 doctoral students since that time. He resides with his wife, Lauren, and son, Banks, in Henderson, Nevada.
Services Available
Below are a list of services provided by Dr. John Matthias. If you are interested in one or more of them please feel free to reach out by using the contact form
Dr. Matthias has provided expert witness consultation and services to District Attorney’s offices, prosecutors and defense attorneys. He has become a highly sought-after expert and consultant on numerous high profile cases involving sex offenders and violent crimes.
Dr. Matthias has provided training and consultation to mental health professionals, law enforcement, and attorneys on criminal psychology, domestic violence, forensic interviewing, and victim impact. He has also spoken at numerous conferences over the years on trauma, victim impact, child abuse, criminal psychology, domestic violence, and forensic case formulation.
Dr. Matthias performs evidence-based forensic evaluations and risk assessments for sexual offenses and violent crimes. He also conducts in-depth psychological evaluations for the courts. .
Dr. Matthias works with a very limited number of individual clients for therapy on an annual basis. He has also worked as a leadership development coach, and he selects one or two individuals for leadership work on a pro bono basis each year to assist in the improvement of communal leadership for a better world.
Hidden True Crime
In July of 2020 Dr. John Matthias and his wife, Lauren, started a true crime podcast Hidden True Crime. The podcast has gained significant traction in a short period of time, and is available on all major podcasting platforms as well as YouTube.