ACCURATE OPINIONS FOR PIVOTAL LEGAL QUESTIONS

Criminal Forensic Evaluations & Expert Testimony

I conduct independent evaluations to assess competency, mental state at the time of offense, and related forensic issues central to criminal responsibility.

Dr. Marcus R. VanSickle provides comprehensive criminal forensic psychological evaluations and expert testimony in state, federal, and military jurisdictions. His work is grounded in evidence-based forensic methodology, adherence to APA Forensic Practice Guidelines, and extensive experience with complex and high-risk cases.

With dual board certification in Forensic Psychology and Behavioral & Cognitive Psychology and expertise in Clinical Psychopharmacology, Dr. VanSickle brings a broad range clinical and legal expertise to every evaluation. His history as 24+ year military veteran and former Navy Forensic Psychologist provides the cultural competence needed to work with military and veteran populations.

Criminal Forensic Services Include:

  • Competency to Stand Trial (CST)

  • Criminal Responsibility / Insanity Evaluations

  • Mental State at the Time of the Offense

  • Violence & Risk Assessments

  • Sentencing Mitigation and Aggravation

  • Fitness for Duty in criminal matters

  • Case consultation and expert testimony

Forensic Evaluation Process

Each evaluation is individualized to the referral question and jurisdictional requirements, typically including:

  • Comprehensive record review

  • Forensic clinical interview

  • Collateral interviews when appropriate

  • Psychological testing as indicated

  • Structured professional judgment and risk instruments

  • Detailed written forensic report

  • Expert testimony when required

Experience Across Jurisdictions

Dr. VanSickle has conducted evaluations in:

  • State criminal courts

  • Federal courts

  • Military justice proceedings

His background includes work involving sensitive, complex, and high-risk forensic matters, providing prosecutors, defense counsel, and courts with objective, well-supported forensic opinions.

All services are conducted with strict forensic neutrality, objectivity, and scientific rigor.