Title 18Crimes and Criminal ProcedureRelease 119-73not60

§4241 Determination of Mental Competency to Stand Trial to Undergo Postrelease Proceedings 11 So in Original. Probably Should Be “stand Trial or to Undergo Postrelease Proceedings”.

Title 18 › Part III— PRISONS AND PRISONERS › Chapter 313— OFFENDERS WITH MENTAL DISEASE OR DEFECT › § 4241

Last updated Apr 5, 2026|Official source

Summary

A defendant or the government's lawyer can ask the court for a hearing at any point after prosecution starts and before sentencing, or after probation or supervised release begins and before the sentence ends, to decide if the defendant is mentally fit to understand the proceedings and help with their defense. The judge must hold the hearing if there is reasonable cause to think the person may be unable to understand the case or assist in their defense. The court can order a psychiatric or psychological exam and report before the hearing, and the hearing follows the procedures required by law. If the court finds, by more likely than not, that the defendant is currently unable to understand the proceedings or assist in their defense, the judge must send the person to the Attorney General’s custody for hospital treatment. The hospital may hold the person up to four months to see if there is a strong chance they will become fit. The stay can be extended for another reasonable time if the court finds a good chance of recovery, or until the charges are resolved. If the hospital director says the person has recovered, the court will hold another hearing and, if fit, order immediate discharge and set trial dates. Being found competent for trial cannot be used as evidence at the criminal trial and does not stop the defendant from using an insanity defense.

Full Legal Text

Title 18, §4241

Crimes and Criminal Procedure — Source: USLM XML via OLRC

(a)At any time after the commencement of a prosecution for an offense and prior to the sentencing of the defendant, or at any time after the commencement of probation or supervised release and prior to the completion of the sentence, the defendant or the attorney for the Government may file a motion for a hearing to determine the mental competency of the defendant. The court shall grant the motion, or shall order such a hearing on its own motion, if there is reasonable cause to believe that the defendant may presently be suffering from a mental disease or defect rendering him mentally incompetent to the extent that he is unable to understand the nature and consequences of the proceedings against him or to assist properly in his defense.
(b)Prior to the date of the hearing, the court may order that a psychiatric or psychological examination of the defendant be conducted, and that a psychiatric or psychological report be filed with the court, pursuant to the provisions of section 4247(b) and (c).
(c)The hearing shall be conducted pursuant to the provisions of section 4247(d).
(d)If, after the hearing, the court finds by a preponderance of the evidence that the defendant is presently suffering from a mental disease or defect rendering him mentally incompetent to the extent that he is unable to understand the nature and consequences of the proceedings against him or to assist properly in his defense, the court shall commit the defendant to the custody of the Attorney General. The Attorney General shall hospitalize the defendant for treatment in a suitable facility—
(1)for such a reasonable period of time, not to exceed four months, as is necessary to determine whether there is a substantial probability that in the foreseeable future he will attain the capacity to permit the proceedings to go forward; and
(2)for an additional reasonable period of time until—
(A)his mental condition is so improved that trial may proceed, if the court finds that there is a substantial probability that within such additional period of time he will attain the capacity to permit the proceedings to go forward; or
(B)the pending charges against him are disposed of according to law;
(e)When the director of the facility in which a defendant is hospitalized pursuant to subsection (d) determines that the defendant has recovered to such an extent that he is able to understand the nature and consequences of the proceedings against him and to assist properly in his defense, he shall promptly file a certificate to that effect with the clerk of the court that ordered the commitment. The clerk shall send a copy of the certificate to the defendant’s counsel and to the attorney for the Government. The court shall hold a hearing, conducted pursuant to the provisions of section 4247(d), to determine the competency of the defendant. If, after the hearing, the court finds by a preponderance of the evidence that the defendant has recovered to such an extent that he is able to understand the nature and consequences of the proceedings against him and to assist properly in his defense, the court shall order his immediate discharge from the facility in which he is hospitalized and shall set the date for trial or other proceedings. Upon discharge, the defendant is subject to the provisions of chapters 207 and 227.
(f)A finding by the court that the defendant is mentally competent to stand trial shall not prejudice the defendant in raising the issue of his insanity as a defense to the offense charged, and shall not be admissible as evidence in a trial for the offense charged.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Based on title 18, U.S.C., 1940 ed., § 876 (May 13, 1930, ch. 254, § 6, 46 Stat. 271). Changes were made in phraseology and surplusage omitted.

Editorial Notes

Amendments

2006—Pub. L. 109–248, § 302(2)(A), inserted “to undergo postrelease proceedings” after “trial” in section catchline. Subsec. (a). Pub. L. 109–248, § 302(2)(B), inserted “or at any time after the commencement of probation or supervised release and prior to the completion of the sentence,” after “sentencing of the defendant,”. Subsec. (d). Pub. L. 109–248, § 302(2)(C), substituted “proceedings to go forward” for “trial to proceed” wherever appearing and “section 4246 and 4248” for “section 4246” in concluding provisions. Subsec. (e). Pub. L. 109–248, § 302(2)(D), inserted “or other proceedings” after “trial” and substituted “chapters 207 and 227” for “chapter 207”. 1984—Pub. L. 98–473 amended section generally, substituting “Determination of mental competency to stand trial” for “Examination and transfer to hospital” in section catchline, and substituting provisions relating to motion, report, hearing, etc., for determination of competency of defendant, for provisions relating to boards of examiners for examination of inmates of Federal penal and correctional institutions and transfer of such inmates to hospitals.

Statutory Notes and Related Subsidiaries

Short Title

of 1984 Amendment Pub. L. 98–473, title II, § 401, Oct. 12, 1984, 98 Stat. 2057, provided that: “This chapter [chapter IV (§§ 401–406) of title II of Pub. L. 98–473, enacting section 20 of this title and amending this chapter, section 3006A of this title, and rule 12.2 of the Federal Rules of Criminal Procedure and rule 704 of the Federal Rules of Evidence set out in the Appendix to this title] may be sited [cited] as the ‘Insanity Defense Reform Act of 1984’.”

Reference

Citations & Metadata

Citation

18 U.S.C. § 4241

Title 18Crimes and Criminal Procedure

Last Updated

Apr 5, 2026

Release point: 119-73not60