Rule 52. Harmless Error and Plain Error

(a) Harmless Error. Any error, defect, irregularity or variance which does not affect substantial rights shall be disregarded.

(b) Plain Error. Plain errors or defects affecting substantial rights may be noticed although they were not brought to the attention of the court.

Notes of Advisory Committee on Rules-1944

Note to Subdivision (a). This rule is a restatement of existing law, 28 U.S.C. [former] 391 (second sentence): "On the hearing of any appeal, certiorari, writ of error, or motion for a new trial, in any case, civil or criminal, the court shall give judgment after an examination of the entire record before the court, without regard to technical errors, defects, or exceptions which do not affect the substantial rights of the parties"; 18 U.S.C. [former] 556; "No indictment found and presented by a grand jury in any district or other court of the United States shall be deemed insufficient, nor shall the trial, judgment, or other proceeding thereon be affected by reason of any defect or imperfection in matter of form only, which shall not tend to the prejudice of the defendant, * * *." A similar provision is found in Rule 61 of the Federal Rules of Civil Procedure [28 U.S.C., Appendix].

Note to Subdivision (b). This rule is a restatement of existing law, Wiborg v. United States, 163 U.S. 632, 658; Hemphill v. United States, 112 F.2d 505 (C.C.A. 9th), reversed 312 U.S. 657. Rule 27 of the Rules of the Supreme Court [28 U.S.C., Appendix] provides that errors not specified will be disregarded, "save as the court, at its option, may notice a plain error not assigned or specified." Similar provisions are found in the rules of several circuit courts of appeals.

Federal Rules of Civil Procedure

Harmless error, civil proceedings, see rule 61, Title 28, Appendix, Judiciary and Judicial Procedure.

Cross References

Harmless error, appellate courts, see section 2111 of Title 28, Judiciary and Judicial Procedure.