Definition
An error of law committed by a trial judge when instructing the jury. Misdirection occurs when the judge states the applicable law incorrectly, incompletely, or in a manner that misleads the jury on a point material to the outcome of the case. It is a recognized ground for setting aside a verdict and granting a new trial, or for reversal on appeal.
The term operates in two related but distinct contexts:
1. Misdirection on the law: The judge misstates a legal rule, standard, or element that the jury must apply. This is the core and historically dominant meaning.
2. Misdirection on the facts (non-direction): The judge fails to adequately draw the jury's attention to evidence or factual issues they must consider. Courts in common law jurisdictions, particularly English and Commonwealth courts, have treated this as a cognate problem, sometimes called misdirection by omission or non-direction.
Not every misdirection compels relief. The error must be material — that is, it must have been capable of affecting the verdict. Harmless or technical errors in jury instruction ordinarily do not warrant a new trial.
Common Language
Modern common usage (Wiktionary): An act of misleading someone or causing them to focus in an incorrect direction; movement or tendency toward the wrong goal; also used in magic and stage performance to describe deliberate distraction.
Historical common usage (Webster's 1913): "The act of directing wrongly, or the state of being so directed."
The common meaning carries a connotation of deliberate deception or intentional misdirection — as in a magician's sleight of hand. The legal meaning carries no such implication. A judge who misdirects a jury is not accused of deliberate manipulation; the term describes an objective error in legal instruction, not a corrupt or intentional act. Researchers encountering the word in general historical sources should not assume intent where none is implied.
Common Confusion
Misdirection is sometimes confused with misdirection as an appellate ground versus misdirection as trial error. These are the same underlying error viewed from different procedural vantage points: the misdirection occurs at trial; the appellate court identifies and evaluates it on review. Separately, misdirection should be distinguished from misconduct of counsel (improper argument to the jury) and from a directed verdict or judgment notwithstanding the verdict, which are distinct procedural mechanisms by which a judge removes an issue from the jury's consideration rather than misinstructing them about it.
Why It Matters in Research
Misdirection is primarily a term of appellate and trial practice, and its significance in historical legal sources runs deep. Several research traps deserve attention.
First, the term appears almost exclusively in the context of jury trials. As bench trials became more common and as appeals from judge-only proceedings multiplied, the vocabulary around legal error diversified. Researchers working in modern sources may find misdirection displaced by broader language such as "error in jury instructions" or simply "instructional error." The older term remains the dominant vocabulary in English and Commonwealth materials and in American sources predating the mid-twentieth century.
Second, the threshold for relief has varied across time and jurisdiction. Early common law treated misdirection on a material point as nearly automatic grounds for a new trial. Later jurisprudence introduced harmless error analysis, substantially narrowing the practical impact of the doctrine. Sources from different eras will reflect different standards; a researcher comparing Victorian-era English cases to mid-twentieth century American decisions may find what appears to be a doctrinal conflict that is actually a divergence in how prejudice is evaluated.
Third, Rapalje & Lawrence's entry contains a notable defect: the text as preserved conflates the misdirection entry with surrounding text from a misdemeanor entry, producing garbled source material. Researchers using that dictionary should verify the entry against parallel sources.
Fourth, Anderson's Dictionary of Law provides no substantive definition, directing the reader only to "CHARGE, 2 (2, c)" — meaning the misdirection concept in that dictionary is embedded within the treatment of jury charges. Researchers using Anderson as a primary source for this term will find it incomplete without following that cross-reference.
Fifth, the connection between misdirection and new trial doctrine is historically tight. Most of the foundational case law on misdirection developed through new trial practice rather than direct appeal, because direct appeal from jury verdicts was historically limited in common law systems. Corpus research that spans the new trial and misdirection entries will yield a more complete picture than either entry alone.
Historical Dictionary Support
The historical sources converge on a single core definition with minor variation in emphasis. Black's (both editions), Bouvier's, and Rapalje & Lawrence agree that misdirection is an error of law made by a judge in charging or instructing the jury. There is no meaningful disagreement among the sources on this point.
Bouvier's provides the most substantive treatment, noting the general rule that misdirection on a material point will cause the verdict to be set aside and a new trial granted, while signaling that the rule was "subject to qualifications" — an early acknowledgment of what would later develop into harmless error doctrine.
Rapalje & Lawrence, in the portion of the entry that is legible and applicable, similarly frames misdirection as an error in charging the jury that is "generally, and in criminal cases always, sufficient ground for a new trial" — suggesting that courts were more demanding about instructional accuracy in criminal than civil proceedings, a doctrinal nuance the other dictionaries do not flag.
None of the historical sources address misdirection by omission or non-direction as a cognate concept, nor do they engage with the harmless error analysis that would come to govern modern appellate review of instructional error. These are genuine gaps in the historical record for this term.
Webster's 1913 notably cross-references Mozley & Whiteley for the legal sense, indicating the legal meaning was sufficiently established by 1913 to be included in a general-purpose dictionary alongside the ordinary English usage.
Jurisdictional Note
The term misdirection is considerably more common in English and Commonwealth legal discourse than in American usage, where courts and practitioners more often speak of "erroneous jury instructions" or "instructional error." The substantive doctrine is equivalent, but researchers working across jurisdictions should search both vocabularies to capture the full body of relevant authority.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Trial Practice — Jury Instructions; Appellate Review — Harmless Error; New Trial — Grounds and Standards.