Criminal Law · defense

Elements of Infancy Defense

Quick Answer

What are the elements of Infancy Defense?

The infancy defense is based on the principle that children, typically under the age of 7, lack the emotional and cognitive development to form the requisite intent for criminal liability. The age at which a child is considered incapable of criminal responsibility may vary by jurisdiction and is intended to recognize the differing capabilities of minors in understanding the nature and consequences of their actions.

Required Elements

1. Age of the Defendant

The age at which the defendant committed the alleged crime must be established to invoke the infancy defense.

What to prove: It must be shown that the defendant was below the statutory age threshold established by the applicable jurisdiction, which often is set at 7 years old or varies based on different jurisdictions.

2. Capacity to Understand Wrongfulness

The defendant must be demonstrated to lack the capacity to understand the nature and consequences of their actions.

What to prove: Evidence must illustrate that the defendant could not comprehend the difference between right and wrong at the time of the offense, often requiring psychological evaluations.

Burden of Proof

The defendant has the burden of proof, and the standard applied is typically a preponderance of the evidence.

Available Defenses
  • Insanity Defense
  • Diminished Capacity Defense
Common Fact Patterns
  • A 6-year-old accused of vandalizing property with no understanding of the wrongfulness of their actions.
  • A 15-year-old charged with theft who argues they did not comprehend the significance of stealing.
Exam Tip

The infancy defense may appear on exams in questions about juvenile justice or when differentiating between criminal liability for minors and adults. Pay attention to the specific age thresholds and capacity considerations.

Key Cases
  • Commonwealth v. Hinson
  • State v. S.B.
  • People v. Lewis

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