Perjury¶

Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding.

Version: v1 · 2026-09-28 · History
Domain-specific #: 11265
Domain group: Professional & Organizational Practice
Origin domain: Law & Governance
Subdomain: Criminal Law → Law & Governance

Core Idea¶

Perjury is treated here as the recurring criminal law identity summarized by this source-grounded definition: Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding.

Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. Like most other crimes in the common law system, to be convicted of perjury one must have had the intention (mens rea) to commit the act and have actually committed the act (actus reus). Further, statements that are facts cannot be considered perjury, even if they might arguably constitute an omission, and it is not perjury to lie about matters that are immaterial to the legal proceeding.

Statements that entail an interpretation of fact are not perjury because people often draw inaccurate conclusions unwittingly or make honest mistakes without the intent to deceive. Individuals may have honest but mistaken beliefs about certain facts or their recollection may be inaccurate, or may have a different perception of what is the accurate way to state the truth. In some jurisdictions, no crime has occurred when a false statement is (intentionally or unintentionally) made while under oath or subject to penalty.

For Perjury, the abstraction is narrower than the article's general subject matter: a positive case must preserve Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. Retaining only the name, a familiar example, or a downstream effect is insufficient. The specialist roles and tests remain anchored in criminal law, which is why this identity is domain-specific rather than prime.

Structural Signature¶

Sig role-phrases:

Defining carrier — A statement made on oath by a witness outside the United Kingdom and given in evidence through a live television link by virtue of section 32 of the Criminal Justice Act 1988 must be treated for the purposes of section 1 as having been made in the proceedings in which it is given in evidence.
Constitutive relation — Perjury is punishable by imprisonment in various states and territories of Australia.
Operating condition — Australian Capital Territory: Perjury is punishable by a fine of up to AU$112,000 or 7 years imprisonment or both.
Recognition evidence — New South Wales: Under Section 327 of the Crimes Act 1900, perjury is punishable by imprisonment of up to 10 years.
Admissible variation — Under Section 328, if a person commits perjury with the aim of convicting or acquitting a person charged with an offence that carries a prison sentence of 5 years or more, perjury is punishable by imprisonment of up to 14 years.
Characteristic consequence — Northern Territory: Perjury is punishable by imprisonment of up to 14 years.
Failure boundary — South Australia: Perjury and subornation of perjury is punishable by imprisonment of up to 7 years.

What It Is Not¶

Not the whole field of criminal law. The node requires the specific identity stated by Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding.
Not an over-broad reading. This was due to the fact that their role were not yet differentiated from those of the juror and so evidence or perjury by witnesses was not made a crime.
Not an over-broad reading. The court uses the Dunnigan-based legal standard to determine if an accused person: "testifying under oath or affirmation violates this section if she gives false testimony concerning a material matter with the willful intent to provide false testimony, rather than as a result of confusion, mistake, or faulty memory." However, a defendant shown to be willfully ignorant may in fact be eligible for perjury prosecution.
Not an over-broad reading. It is not perjury, for example, to lie about one's age except if age is a fact material to influencing the legal result, such as eligibility for old age retirement benefits or whether a person was of an age to have legal capacity.
Not automatically Police perjury. Retrieval proximity does not establish equivalence; the two identities must be compared by carrier, operation, and failure boundary.

Scope of Application¶

Perjury applies literally inside criminal law wherever the source-defined carrier and relation can be established. Its documented habitats include:

European Union. Proceedings for this offence may be taken in any place in the State and the offence may for all incidental purposes be treated as having been committed in that place.
History. With time witnesses began to appear in court they were not so treated despite the fact that their functions were akin to that of modern witnesses.
Statutory definitions. Most notably, the United States Code prohibits perjury, which is defined in two senses for federal purposes as someone who.
Statutory definitions. One particularly precarious aspect of the phrasing is that it entails knowledge of the accused person's perception of the truthful nature of events and not necessarily the actual truth of those events.
Notable convicted perjurers. Alger Hiss, American government official who was accused of being a Soviet spy in 1948 and convicted of perjury in connection with this charge in 1950.
Allegations of perjury. President Bill Clinton was accused of perjury in the Clinton–Lewinsky scandal and as a result was impeached by the House of Representatives on 19 December 1998.

Outside criminal law, the name should be retained only when these same operational conditions survive; otherwise the comparison belongs to the broader parent Pattern or should be marked as analogy.

Clarity¶

A clear use of Perjury names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. The strongest recognition evidence in the frozen account is: New South Wales: Under Section 327 of the Crimes Act 1900, perjury is punishable by imprisonment of up to 10 years. A report should distinguish that evidence from a proxy, consequence, or common implementation. It should also state the qualification This was due to the fact that their role were not yet differentiated from those of the juror and so evidence or perjury by witnesses was not made a crime. so that a reader can reproduce the classification rather than infer it from topical resemblance.

Manages Complexity¶

Perjury compresses multiple criminal law details into a stable diagnostic relation. The source shows both the central mechanism—perjury is punishable by imprisonment in various states and territories of Australia.—and the practical consequence—northern Territory: Perjury is punishable by imprisonment of up to 14 years. This compression makes cases comparable while leaving parameters, conventions, exceptions, and evidential quality explicit. It is lossy by design: local history and implementation details may be omitted only when they do not alter the defining relation.

Abstract Reasoning¶

Type the carrier. Identify the criminal law entities to which the claim applies.
State the relation. Use the source-grounded identity: Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding.
Check operation and conditions. Australian Capital Territory: Perjury is punishable by a fine of up to AU$112,000 or 7 years imprisonment or both.
Demand recognition evidence. New South Wales: Under Section 327 of the Crimes Act 1900, perjury is punishable by imprisonment of up to 10 years.
Test variation. Change an implementation or setting while preserving under Section 328, if a person commits perjury with the aim of convicting or acquitting a person charged with an offence that carries a prison sentence of 5 years or more, perjury is punishable by imprisonment of up to 14 years.
Run the collapse test. Remove the defining operation; if the label still seems equally apt, only a topic or correlate was retained.
Reduce cautiously. When the specialist conditions cannot be carried, route the residual comparison to Pattern.

Knowledge Transfer¶

Within the home domain. Knowledge about Perjury transfers literally when a new case preserves the same carrier type, relation, and recognition test. Proceedings for this offence may be taken in any place in the State and the offence may for all incidental purposes be treated as having been committed in that place. With time witnesses began to appear in court they were not so treated despite the fact that their functions were akin to that of modern witnesses.

Beyond the home domain. No canonical parent is asserted for Perjury. An outside case receives the specialist name only when the same typed roles and rejection conditions can be filled literally; otherwise the comparison remains an analogy pending later graph densification.

Examples¶

Canonical¶

It is not perjury, for example, to lie about one's age except if age is a fact material to influencing the legal result, such as eligibility for old age retirement benefits or whether a person was of an age to have legal capacity. This case is canonical because it supplies a concrete carrier and lets the defining relation be checked rather than merely named.

Mapped back: carrier → the entities in the documented case; operation → Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding; recognition evidence → New South Wales: Under Section 327 of the Crimes Act 1900, perjury is punishable by imprisonment of up to 10 years

Applied / In Practice¶

As such, the main tenets of perjury, including mens rea, a lawful oath, occurring during a judicial proceeding, a false testimony have remained necessary pieces of perjury's definition in the United States. The applied case shows how the identity is used under a second setting or qualification while keeping the same operative relation.

Mapped back: changed setting → United States; invariant → Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding; boundary → the case exits the class when this was due to the fact that their role were not yet differentiated from those of the juror and so evidence or perjury by witnesses was not made a crime

Structural Tensions¶

T1 — Stable identity versus admissible variation. This was due to the fact that their role were not yet differentiated from those of the juror and so evidence or perjury by witnesses was not made a crime. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Which changes preserve the defining relation, and which replace it?

T2 — Recognition versus proxy. The court uses the Dunnigan-based legal standard to determine if an accused person: "testifying under oath or affirmation violates this section if she gives false testimony concerning a material matter with the willful intent to provide false testimony, rather than as a result of confusion, mistake, or faulty memory." However, a defendant shown to be willfully ignorant may in fact be eligible for perjury prosecution. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Does the cited evidence establish the identity or only a correlated sign?

T3 — Definition versus implementation. It is not perjury, for example, to lie about one's age except if age is a fact material to influencing the legal result, such as eligibility for old age retirement benefits or whether a person was of an age to have legal capacity. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Is the observed implementation constitutive, optional, or merely common?

T4 — Scope versus overextension. Everyone who commits perjury is guilty of an indictable offence and liable to imprisonment for a term not exceeding fourteen years. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Can every claimed application fill the same typed roles without metaphor?

T5 — Transfer versus domain accent. A statement made on oath by a witness outside the United Kingdom and given in evidence through a live television link by virtue of section 32 of the Criminal Justice Act 1988 must be treated for the purposes of section 1 as having been made in the proceedings in which it is given in evidence. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Does the receiving case instantiate Perjury literally, co-instantiate Pattern, or only resemble it?

T6 — Autonomy versus reduction. Perjury is punishable by imprisonment in various states and territories of Australia. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: What does Perjury distinguish that the broader parent Pattern leaves together?

Structural–Framed Character¶

Perjury is mixed or framed-leaning. Its structural side is the repeatable organization summarized by Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. Its framed side is the criminal law vocabulary that fixes the carrier, evidence, exceptions, and admissible transformations.

Evaluative weight: the identity can be stated descriptively even when applications carry practical stakes. Human-practice dependence: the source-grounded carrier determines whether the relation exists independently or is constituted by a practice. Institutional origin: disciplinary conventions stabilize the name and test. Vocabulary portability: Australian Capital Territory: Perjury is punishable by a fine of up to AU$112,000 or 7 years imprisonment or both. Import versus recognition: literal transfer requires the same mechanism; shape alone is analogy.

Its portable skeleton is Pattern. Its character: a recurring specialist identity whose thin organization can be abstracted, while its operational meaning remains domain-bound.

Structural Core vs. Domain Accent¶

What is skeletal. Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. The stable skeleton is the typed relation expressed in that definition and the entry's recognition and collapse tests. The source identifies these operative conditions: A statement made on oath by a witness outside the United Kingdom and given in evidence through a live television link by virtue of section 32 of the Criminal Justice Act 1988 must be treated for the purposes of section 1 as having been made in the proceedings in which it is given in evidence. Perjury is punishable by imprisonment in various states and territories of Australia. It further constrains recognition and variation through: Australian Capital Territory: Perjury is punishable by a fine of up to AU$112,000 or 7 years imprisonment or both. New South Wales: Under Section 327 of the Crimes Act 1900, perjury is punishable by imprisonment of up to 10 years.

What is domain-bound. criminal law supplies the operative entities, technical vocabulary, warrants, and exceptions that make Perjury literal. Its documented scope includes the condition that Proceedings for this offence may be taken in any place in the State and the offence may for all incidental purposes be treated as having been committed in that place. Another bounded application condition is that With time witnesses began to appear in court they were not so treated despite the fact that their functions were akin to that of modern witnesses. These are not decorative examples; they determine which carrier and evidence can fill the abstraction's roles.

Why no parent is asserted. Removing those specialist details does not currently yield one live catalog node that is a necessary genus for every instance. The entry is therefore approved as unparented rather than attached by topical resemblance. Its collapse evidence remains specific—Under Section 328, if a person commits perjury with the aim of convicting or acquitting a person charged with an offence that carries a prison sentence of 5 years or more, perjury is punishable by imprisonment of up to 14 years.—and future graph densification may discover a defensible relation only if it preserves that boundary.

This entry is a kind of Legal Offense.

Approved unparented node. No current live node supplies a defensible necessary genus or structural prerequisite for Perjury. The reviewed identity is: Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding. The accelerated suggestion was declined because topical or lexical similarity does not establish hierarchy; the node is admitted without a parent pending later graph densification.
Related reasoning operations. Evidence, representation, comparison, classification, transformation, or evaluation may participate in particular cases, but participation does not make any one of them a necessary parent of every instance.

Relationships to Other Abstractions¶

Current abstraction Perjury Domain-specific

Parents (1) — more general patterns this builds on

Perjury is a kind of Legal Offense Domain-specific

Perjury satisfies the defining boundary of Legal Offense: A legal offense is a jurisdiction-defined act, omission, course of conduct, or prohibited state of affairs whose specified elements and required mental state or liability standard expose a legally responsible person or entity to criminal or regulatory prosecution and sanction.

Hierarchy path (1) — routes to 1 parentless root

Perjury → Legal Offense

Neighborhood in Abstraction Space¶

Perjury sits in a sparse region of the domain-specific corpus (84^th percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.

Family — Legal Procedure & Liability Standards (13 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-10-08

Not to Be Confused With¶

Pattern. The parent omits the specialist differentia. Tell: Can the case establish Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding?
Police perjury. Police perjury denotes the act of a police officer knowingly giving false testimony in police ethics. Tell: Which entry's carrier, operation, and failure condition are satisfied?
Guiltive. A pragmatic speech-act pattern in which an apparently generous or indifferent utterance transparently conveys the opposite attitude in order to induce guilt in the addressee. Tell: Which entry's carrier, operation, and failure condition are satisfied?
Persuasive definition. A stipulative redefinition presented as ordinary or true usage that embeds an evaluative stance and shifts the audience’s attitudes or argumentative commitments. Tell: Which entry's carrier, operation, and failure condition are satisfied?
A measurement, proxy, or consequence. Those may provide evidence without being the identity. Tell: Would Perjury remain present if the detector or downstream effect changed?
A metaphorical analogue. A similar shape outside criminal law lacks the specialist mechanism. Tell: Do the native roles transfer literally, or only the parent Pattern?

References¶

Frozen Wikipedia discovery revision: https://en.wikipedia.org/wiki/Perjury (revision 1369143394).
Preserved source candidate: https://archive.org/details/blackslawdiction00garn_900/page/n1192
Preserved source candidate: https://openscholarship.wustl.edu/law_lawreview/vol97/iss1/11/
Preserved source candidate: https://casetext.com/case/united-states-v-slawik-2
Preserved source candidate: http://www.criminal-law-lawyer-source.com/terms/perjury.html
Preserved source candidate: https://web.archive.org/web/20170922002321/http://www.criminal-law-lawyer-source.com/terms/perjury.html
Preserved source candidate: https://www.austlii.edu.au/cgi-bin/viewdoc/au/legis/act/consol_act/cc200294/s703.html
Preserved source candidate: https://www.austlii.edu.au/cgi-bin/viewdoc/au/legis/act/consol_act/la2001133/s133.html
Preserved source candidate: https://www.austlii.edu.au/cgi-bin/viewdoc/au/legis/act/consol_act/cc200294/s702.html

The frozen Wikipedia revision is discovery provenance. The retained source set was reviewed for identity, formal or operational relation, and scope. The encyclopedia's structural synthesis is bounded to those claims; a thin authority surface is recorded as a nonblocking source-strengthening repair rather than concealed.