Actus Reus Arena
Mens Rea Madness
Defenses & Justifications
Inchoate Offenses Showdown
Constitutional Corner
100

This term refers to the physical, voluntary act required for criminal liability.

What is actus reus?

100

This is the Latin term for the “guilty mind.”


What is mens rea?

100

This defense applies when a person reasonably believes force is necessary to prevent imminent harm.


What is self‑defense?

100

This offense involves taking a substantial step toward committing a crime.


What is attempt?

100

This amendment protects against unreasonable searches and seizures.


What is the Fourth Amendment?

200

A person cannot be criminally liable for this type of movement, such as a seizure or sleepwalking

What is an involuntary act?

200

The lowest level of mens rea, involving failure to perceive a substantial risk.


What is negligence?

200

A defense where the defendant claims they were forced to commit a crime by threat of harm.


What is duress?

200

Asking, encouraging, or commanding someone to commit a crime.


What is solicitation?

200

Laws that criminalize conduct after it occurs violate this constitutional prohibition.


What is the ex post facto clause?

300

When a person has a legal duty to act but fails to do so, this type of actus reus may apply.


What is an omission?

300

When a defendant consciously disregards a substantial and unjustifiable risk.


What is recklessness?

300

This defense applies when a person commits a lesser harm to avoid a greater harm.


What is necessity?

300

An agreement between two or more people to commit a crime.


What is conspiracy?

300

This doctrine requires laws to be clear enough for ordinary people to understand.


What is the void‑for‑vagueness doctrine?

400

Possession can satisfy actus reus when the defendant has this type of control over the object.


What is conscious possession?

400

This mens rea requires a conscious objective to cause a specific result.


What is purpose?

400

When police induce someone to commit a crime they otherwise wouldn’t, this defense may apply.


What is entrapment?

400

The requirement that conspirators commit an act to further the plan.


What is an overt act?

400

The principle that punishment must be proportional to the crime.


What is the Eighth Amendment proportionality principle?

500

This doctrine holds that a person who creates a risk has a duty to prevent harm.


What is the creation‑of‑risk doctrine?

500

When a defendant intends one harm but accidentally causes another, this doctrine applies.


What is transferred intent?

500

This justification allows deadly force to prevent a serious felony like robbery or burglary.


What is the defense of others or defense of habitation?

500

When a defendant voluntarily stops before completing the crime, they may claim this defense.


What is abandonment (or renunciation)?

500

This constitutional requirement ensures the government cannot punish protected speech.


What is the First Amendment?

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