Competency to Stand Trial

Also known as: Mental Competency

In one sentence

A defendant's mental and legal ability to understand trial proceedings and assist in their own defense.

Plain English

Competency to stand trial is a legal and psychological assessment of whether a defendant can understand the charges against them, comprehend the trial process, and work with their lawyer to mount a defense. If a defendant is found incompetent—usually due to mental illness or severe intellectual disability—they cannot be tried and may be committed to mental health treatment instead. Competency is different from sanity; you can be competent to stand trial but still claim insanity as a defense.

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Example

During preliminary hearings, the judge noticed that David seemed confused about the charges and couldn't explain his relationship to his attorney. The judge ordered a competency evaluation. A psychiatrist found David suffered from severe schizophrenia and couldn't understand the proceedings. The trial was suspended pending treatment.

Used in a sentence

The defense raised a question about the defendant's competency to stand trial, prompting the judge to order a psychiatric evaluation.

Related terms

This page is a plain-English reference and is not legal advice. Laws vary by jurisdiction and change over time. For specific situations consult a licensed attorney.