Also known as: vague · vaguer · vaguest · void for vagueness · vagueness doctrine
Written by attorneys · grounded in primary & secondary sources — see below
2 senses
A constitutional doctrine that invalidates a statute when the forbidden conduct is defined so unclearly that a reasonable person must guess at its meaning. The doctrine protects due process by requiring fair notice of prohibited acts and by preventing arbitrary or discriminatory enforcement.
A constitutional doctrine that invalidates a statute when the forbidden conduct is defined so unclearly that a reasonable person must guess at its meaning. The doctrine protects due process by requiring fair notice of prohibited acts and by preventing arbitrary or discriminatory enforcement.
Valerie Voss, a criminal defense attorney, told reporters that her client would present 'general evidence of police misconduct.' A disciplinary rule barred statements creating a substantial likelihood of prejudicing the trial yet permitted 'general nature of the defense' comments without clear boundaries. The vagueness of the safe harbor left Voss uncertain whether her statement was safe, prompting a successful void-for-vagueness challenge.
A procedural rule permitting a party to obtain clarification of a pleading that is so vague or ambiguous that a response cannot reasonably be prepared.
Vincente Vukovic sued Vega Motors alleging defective parts but described the defects only as 'improper manufacturing practices.' Vega Motors could not determine which components or time periods were at issue. It moved under Rule 12(e) for a more definite statement before answering. The court ordered clarification and struck the complaint when none was supplied within fourteen days.
A procedural rule permitting a party to obtain clarification of a pleading that is so vague or ambiguous that a response cannot reasonably be prepared.
Each sense below has its own examples, sources, and questions.
Veronica Villanueva, a physician, faced prosecution under a statute criminalizing all abortions except those necessary to save the mother's life. The law supplied no guidance on viability or maternal health factors. Villanueva challenged the statute on vagueness grounds, arguing that physicians could not reasonably determine when conduct crossed into criminal territory.
Violet Vang owned waterfront property condemned by the city for an economic development plan. The statute authorized takings that served 'public purposes' without defining the term. Vang argued the phrase was unconstitutionally vague because owners could not predict which projects would qualify or how courts would measure public benefit.
Victoria Vernon sought to introduce a witness's out-of-court statement under a state rule allowing 'reliable' statements. The rule supplied no criteria for reliability. The defense objected that the standard was void for vagueness because it failed to give fair notice of when confrontation rights could be bypassed.
Valentina Vasquez, a public figure, sued a publisher for a defamatory article. The governing standard required proof of 'actual malice' defined only as knowledge of falsity or reckless disregard. Vasquez argued the formulation was unconstitutionally vague because reporters could not ascertain in advance what level of investigation would avoid liability.
Vagueness focuses on unclear drafting that leaves people guessing about prohibited conduct. Overbreadth focuses on a statute that reaches too much protected speech even if its terms are clear. A single law can suffer from both defects.
The challenger must demonstrate that the statute fails to provide fair notice of what is forbidden or creates a substantial risk of arbitrary enforcement. Courts examine the text, any narrowing constructions, and the statute's application to the challenger's conduct.
Yes. If a state court authoritatively narrows the statute to eliminate vagueness before federal review, the federal court will assess the narrowed version. Without such a construction, the statute remains vulnerable.
No. Rule 12(e) provides a procedural remedy when a pleading is too vague for a party to prepare a response. It does not invalidate statutes. It merely requires clarification of the complaint or answer.
Vagueness is especially dangerous when a statute regulates speech because uncertain terms chill protected expression and invite selective enforcement against disfavored viewpoints. Courts therefore apply heightened scrutiny to speech-related vagueness claims.
…conclusion makes it unnecessary for us to consider the additional challenge to the Texas statute asserted on grounds of vagueness. See United States v. Vuitch , 402 U.S., at 67-72. To summarize and to repeat: 1. A state criminal abortion statute of the current Texas type, that excepts from criminality only a…