criminal intent

In one sentence

The mental state or purpose required to commit a crime.

Plain English

Criminal intent (also called mens rea, Latin for 'guilty mind') is the mental element needed to prove most crimes. It means the person acted on purpose, knowingly, recklessly, or with negligence—depending on the specific crime. Simply doing a harmful act by accident usually isn't a crime; you generally need some level of intent or awareness that what you're doing is wrong or dangerous.

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Example

A person intentionally sets fire to a building, knowing people are inside. This shows clear criminal intent. If the same person accidentally starts a fire by carelessly discarding a cigarette, there's no criminal intent for arson, though they might face criminal negligence charges.

Used in a sentence

“The prosecution had to prove criminal intent to convict the defendant of murder rather than manslaughter.”

Related terms

criminal negligence

Reckless disregard for human life or safety that causes serious harm.

Duress

Forcing someone to sign a contract through threats or coercion.

alibi defense

A claim that the defendant was somewhere else when the crime occurred.

guilty plea

A defendant's admission in court that they committed the crime(s) charged, typically resulting in conviction without trial.

circumstantial proof

Evidence that implies a fact indirectly rather than proving it directly through eyewitness testimony.

Stand Your Ground

A law allowing a person to use force, including deadly force, to defend themselves without a duty to retreat.

Castle Doctrine

A law stating that a person's home is their castle and they can use force to defend it without duty to retreat.

Expungement

A legal process that erases or seals a criminal conviction from your record.

This page is a plain-English reference and is not legal advice. Laws vary by jurisdiction and change over time. For specific situations consult a licensed attorney.