Definition
False swearing is the act of knowingly making a false statement under oath or affirmation before a person authorized to administer oaths, in a context not constituting a formal judicial proceeding. It is most commonly treated as a statutory misdemeanor, occupying the space between ordinary dishonesty and full perjury.
The offense shares perjury's core requirement — a deliberate falsehood made under oath — but differs in the venue and procedural context in which the oath is taken. Where perjury requires the false statement to occur in a judicial or quasi-judicial proceeding (a trial, deposition, grand jury), false swearing covers sworn statements made outside those proceedings: affidavits submitted to administrative agencies, sworn applications, statutory declarations, notarized instruments, and similar documents where an oath is legally required but no judicial proceeding is underway.
In American jurisdictions that distinguish the two offenses by statute, false swearing is typically graded as a lesser offense than perjury, often a misdemeanor where perjury is a felony. Some states have collapsed the distinction and treat any knowing false statement under oath as perjury regardless of context; others preserve the two-tier structure inherited from English common law.
Common Confusion
FALSE SWEARING vs. PERJURY: The most important distinction is context. Perjury attaches to false statements made in judicial or official proceedings — testimony at trial, depositions, sworn statements before legislative committees. False swearing applies where an oath is administered by a competent authority but outside a proceeding of that character. In practice, whether a particular affidavit or sworn instrument qualifies as part of a "judicial proceeding" for perjury purposes depends on the jurisdiction's statutory language and case law, meaning the same document could give rise to perjury in one state and only false swearing in another.
FALSE SWEARING vs. MAKING A FALSE STATEMENT: Modern federal law (18 U.S.C. § 1001) and its state analogs criminalize false statements to government agencies whether or not made under oath. False swearing, by contrast, requires the oath element. A lie on an unsworn government form is a false statement offense; the same lie on a notarized affidavit may be false swearing or perjury depending on the proceeding question above.
Core Elements
The traditional elements of false swearing, synthesized across common law and representative American statutes:
1. An oath or affirmation — the statement must be made under a legally administered oath or affirmation, not merely a promise or unsworn declaration.
2. Before a competent authority — administered by a person or officer authorized by law to administer oaths (notary, commissioner, clerk, etc.).
3. A false statement — the content of the sworn statement must be objectively false.
4. Knowledge of falsity — the declarant must know the statement is false at the time of swearing; honest mistake or good-faith belief in truth negates the offense.
5. Materiality — the false statement must concern a matter of public concern or be material to the purpose for which the oath is required. This element, present in English common law formulations, is preserved in some American statutes and absent in others.
6. Outside a judicial proceeding — if the oath is administered as part of a judicial proceeding, the conduct is analyzed under perjury doctrine instead.
Why It Matters in Research
Researchers encounter false swearing in three distinct layers of sources, and conflating them creates error.
First, the English common law baseline: Both Black's and Bouvier's define false swearing in its English misdemeanor form, referencing Stephen's Criminal Digest and the Bills of Sale Acts context. This is a narrow, historically specific usage. Transplanting that definition directly to American materials without checking the applicable statute is a common mistake.
Second, American statutory variation: By the late nineteenth and early twentieth centuries, American states diverged sharply. Some codified false swearing as a standalone misdemeanor preserving the common law distinction from perjury. Others used "perjury" to cover all knowing false oaths regardless of setting, effectively abolishing false swearing as a separate category. A researcher reading an indictment or charging instrument from this period must check the jurisdiction's statute to understand what conduct was actually alleged.
Third, modern displacement: Federal law and many state reform codes have further shifted the landscape. The Model Penal Code treats false swearing (§ 241.2) as a separate misdemeanor, defining it as making a false sworn statement in an official proceeding not covered by the perjury provision, preserving the two-tier structure. Researchers working with post-1962 materials in MPC-influenced jurisdictions should look to that framework rather than the older common law definitions.
Corpus researchers should also note that affidavit-based false swearing appears frequently in contexts that generate large documentary records: insurance fraud investigations, mortgage and real property filings, bankruptcy proceedings (sworn schedules), and administrative licensing matters. The offense may be charged alongside fraud, forgery, or obstruction counts, so related charges in an indictment often signal the evidentiary record worth examining.
Historical Dictionary Support
Black's and Bouvier's are in substantial agreement, with Bouvier's entry appearing to derive from the same Stephen's Criminal Digest passage Black's cites. Both define the offense by its relationship to perjury — false swearing is what perjury would have been, had the oath been taken in a judicial proceeding. This negative definition is instructive: the historical dictionaries understand false swearing primarily as a gap-filler, capturing sworn falsehoods that escape the technical requirements of perjury.
Neither dictionary addresses American statutory developments with any specificity, reflecting their English common law orientation. Both entries are silent on the materiality question as applied to American law and offer no guidance on how courts handled the proceeding/non-proceeding boundary in practice. Researchers relying solely on these entries for American research will find the definitions structurally useful but substantively incomplete.
The Bouvier entry's fragment — "Swearing to a statement with" — suggests the original source continued with additional content, likely addressing sworn statements in commercial or administrative contexts. The truncation is a reminder that digitized historical dictionary sources can be incomplete.
Jurisdictional Note
The offense of false swearing exists as a distinct statutory crime in a number of states but has been merged into perjury in others. Federal law does not use the term "false swearing" as a general offense category; the equivalent conduct is prosecuted under perjury (18 U.S.C. § 1621), false declarations (§ 1623), or false statements (§ 1001) depending on the context. Researchers should always locate the operative statute for the jurisdiction and period at issue before applying any dictionary definition.
Encyclopedia Cross-Reference
criminal_98: Government Contract Fraud (False Claims Act) (The Law Mind Criminal Law Encyclopedia) — relevant for sworn certifications and false statements in federal procurement and benefits contexts, where the boundary between false swearing and False Claims Act liability frequently arises.