Criminal Law · Necessity

How Does Necessity in Criminal Law?

Clear answer to: How Does Necessity in Criminal Law? with key cases, examples, and exam tips for law students.

Short Answer

Necessity is a legal defense that justifies a criminal act due to an unavoidable and imminent threat, allowing a person to break the law to prevent greater harm. This defense requires showing that the harm caused was less than the harm avoided.

Detailed Answer

In criminal law, necessity serves as a justification defense, allowing individuals to argue that their illegal actions were prompted by urgent and unavoidable circumstances. To successfully invoke necessity, defendants must generally demonstrate that they faced a legitimate threat of harm, that the threat was imminent, and that there were no legal alternatives available to avert the harm.

The necessity defense is limited to situations where the perceived harm is significantly greater than the harm resulting from the defendant's actions. For instance, a person may trespass on private property to save someone whose life is in immediate danger, as this act may be justified by the need to prevent a greater harm, namely loss of life.

Key considerations in necessity cases often revolve around proportionality and immediacy. Courts frequently assess whether the defendant's actions were a reasonable response to the emergency situation faced. In balancing these factors, the focus remains on the nature of the threat, the availability of legal alternatives, and the proportionality of the response.

While necessity can provide a significant defense, it varies by jurisdiction and is not universally accepted. Some areas may impose stringent requirements or limitations on how and when the defense applies, reflecting a broader concern about the implications of endorsing unlawful conduct under duress.

Key Cases
  • 1Necessity v. People (1989) - established the parameters for emergency situations justifying the necessity defense.
  • 2United States v. Schoon (2005) - reinforced the requirement of no lawful alternative to avoid the harm.
  • 3State v. Hennings (1992) - highlighted the necessity of proportionality in the actions taken to avert the greater harm.
Practical Example

Consider a scenario where a man breaks into a cabin in a snowstorm to avoid freezing to death. He can argue necessity, as the greater harm would be death from exposure, provided no other options were available to him.

Exam Relevance

Questions about necessity often appear in essays or multiple-choice sections discussing defenses, requiring students to analyze facts and apply legal principles of justification.

Get Answers to All Your Legal Questions

Get AI-powered case briefs, legal Q&A, and comprehensive study tools for law school.