Caucasian young adult man in orange jumpsuit standing in handcuffs before judge in courtroom

How Is Competency to Stand Trial Assessed?

A defendant’s competency to stand trial is assessed through a semi-structured forensic psychological evaluation that examines their present mental condition to determine whether they have the capacity to participate in criminal proceedings. Generally, this process evaluates whether the individual can understand the charges against them and assist in their own defense with a reasonable degree of rationality.

At Florida Forensic Psychology, our team of licensed psychologists conducts independent evaluations for competency to stand trial in criminal cases nationwide – tracing every defendant’s current psychological functioning in relation to their criminal case.

Who Is Considered Competent to Stand Trial?

A criminal proceeding cannot move forward if the defendant lacks the capacity to participate in a meaningful way. The minimum legal standard for competency to stand trial was established by the U.S. Supreme Court in Dusky v. United States (1960). Competency standards vary across jurisdictions but they are generally congruent with Dusky,

According to this standard, a defendant must:

  • Have a rational and factual understanding of the legal proceedings, and
  • Possess the ability to consult with their attorney with a reasonable degree of rational understanding.

This standard applies regardless of the nature of the alleged crime or the defendant’s past mental health history. The determination is not about diagnosis alone, but about functional capacity within the legal context.

How Is Competency to Stand Trial Evaluated?

A competency to stand trial evaluation is a specialized type of forensic psychological assessment focused on the defendant’s current mental state. It is not concerned with whether the person was mentally ill at the time of the alleged crime, but whether they are presently able to understand and participate in the trial process.

This evaluation is conducted by experts psychologists, who use a combination of clinical interviews, empirically derived instruments, behavioral observations, and review of collateral information.

Each evaluation typically includes the following components:

Clinical Interview

The evaluator conducts a comprehensive interview with the defendant, asking about their psychiatric history, current symptoms, legal knowledge, and understanding of their role in the proceedings. The evaluator also observes demeanor, speech, and coherence.

Psychological Testing

Standardized assessment tools designed to evaluate competency-related capacities may be used. Instruments like the MacArthur Competence Assessment Tool can help evaluate understanding of court procedures, ability to reason about legal options, and appreciation of legal outcomes. Credibility tests are often used to establish the credibility of symptoms endorsed.

Mental Status Examination

This portion of the evaluation assesses mood, orientation, cognitive functioning, and thought process. The goal is to document any current impairment or symptoms that might interfere with competency.

Collateral Record Review

The evaluator will review any available mental health records, criminal history, legal documents, and prior evaluations. This context is critical to understanding whether a diagnosed condition may be impairing the defendant’s legal competencies.

Legal Functioning Analysis

The evaluator analyzes whether the defendant understands their charges, courtroom roles (judge, prosecutor, defense attorney), possible pleas, trial processes, and potential consequences. Additionally, the ability to make informed legal decisions and communicate with counsel is closely examined.

Ultimately, the findings are compiled into a written forensic psychological evaluation, which includes the psychologist’s professional opinion about the defendant’s competency to proceed. This report is submitted to the court and may be used in a competency hearing. Ultimately, the court always decides whether or not a defendant is competent.

What Happens After Competency to Stand Trial Is Done?

Once the evaluation is completed, the psychologist submits a formal report to the court. If the findings suggest that the defendant may be incompetent to stand trial, the next step involves a judicial determination. Ultimately, the court always decides whether or not a defendant is competent.

The court will schedule a competency hearing, during which evidence is presented. This may include testimony from the forensic psychologist who conducted the evaluation. The judge considers the findings, the expert testimony, and any other relevant input to determine whether the defendant meets the legal standard for competency.

If the court rules that the defendant is competent, the criminal proceedings resume. If the court finds the defendant incompetent to stand trial (IST), the legal process is paused. In many jurisdictions, the defendant is then referred for competency restoration treatment, typically through inpatient or outpatient psychiatric services.

We Conduct Competency to Stand Trial Evaluations

Understanding how competency to stand trial is assessed helps clarify one of the most important legal safeguards in criminal justice. It ensures that individuals are only prosecuted when they can meaningfully participate in their defense.

Florida Forensic Psychology has extensive experience providing independent forensic psychological evaluations nationwide to assess competency to stand trial. To learn more about our forensic psychological assessments, contact us today to schedule a complimentary consultation.

For more than 15 years, our forensic and clinical psychologists have provided expert evaluations, testimony, and consultations in criminal, civil, and immigration cases.

States We Serve

  • Alabama
  • Arizona
  • Arkansas
  • Colorado
  • Common M. Islands
  • Connecticut
  • Delaware
  • District of Columbia
  • Florida
  • Georgia
  • Idaho
  • Illinois
  • Indiana
  • Kansas
  • Kentucky
  • Maine
  • Maryland
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Pennsylvania
  • Puerto Rico
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming

National Forensic
Psychology Experts