Criminal Law is the 1L course that feels the most intuitive and turns out to be the most technical. You already have opinions about who's guilty. The course exists to replace those opinions with elements. This outline gives you the doctrinal map in teaching order, the outline-ready rules for each topic, the fact patterns your professor will test, and the framework for attacking the final. Two things to know up front: most courses teach both the common law and the Model Penal Code (MPC) approaches, and your exam will usually ask you to compare them, so learn both for every doctrine. And your professor's jurisdiction choices matter — where casebooks and states split, this outline flags it.

What is Criminal Law about, and how is it tested?

Criminal Law is the study of when the state may punish an individual for conduct. Doctrinally, it is the study of what the prosecution must prove — every crime is a set of elements, and the government must prove each beyond a reasonable doubt. The exam is almost always an issue-spotter: a dense fact pattern where several people commit several acts, and you must charge each defendant with every plausible crime, run every element, raise every defense, and reach a defensible conclusion. The best answers are not the ones that pick the "right" crime — they are the ones that spot every issue and resolve close questions with the rule and the facts. Reasonable-doubt allocation, the common-law-vs-MPC split, and the failure to run defenses are the three things that separate A answers from B answers.

The doctrinal map: what you'll cover, in order

Almost every Criminal Law course moves through these blocks. Learn them in this sequence because each builds on the last:

1. Punishment theory — why we punish (retribution, deterrence, incapacitation, rehabilitation). Light on the exam but frames policy arguments.
2. The elements of a crime — actus reus, mens rea, concurrence, causation. The spine of everything.
3. Homicide — the murder/manslaughter ladder. The single highest-yield topic.
4. Other crimes against persons and property — rape, theft, burglary, robbery (coverage varies by professor).
5. Inchoate crimes — attempt, conspiracy, solicitation.
6. Accomplice liability — how to charge people who helped but didn't pull the trigger.
7. Defenses — justifications (self-defense, defense of others, necessity) and excuses (insanity, duress, intoxication, mistake).

The elements of a crime: actus reus, mens rea, concurrence, causation

Every crime you analyze must be broken into elements, and each element must be satisfied. This is the framework you apply reflexively on the exam.

Actus reus — the voluntary act

Criminal liability requires a voluntary act (or a failure to act where there was a legal duty). Reflexes, seizures, sleepwalking, and unconscious acts are not voluntary and cannot be actus reus. Omissions are punishable only where a duty to act exists: created by statute, contract, special relationship (parent-child), voluntary assumption of care, or creation of the peril. Thoughts alone are never punishable — the law requires conduct. Exam-ready rule: identify the specific act, confirm it was voluntary, and if the defendant did nothing, ask whether a legal duty existed.

Mens rea — the guilty mind

This is where the exam lives. At common law, mental states are messy: general intent, specific intent, malice, and strict liability. Specific-intent crimes (e.g., larceny, burglary, attempt, first-degree murder) require intent to achieve a particular result and open the door to more defenses (like mistake of fact and voluntary intoxication). General-intent crimes require only intent to do the act.

The MPC replaced this mess with four clean mental states, in descending order of culpability:

• Purposely — it is the defendant's conscious object to cause the result.
• Knowingly — the defendant is practically certain the result will occur.
• Recklessly — the defendant consciously disregards a substantial and unjustifiable risk (the MPC default when a statute is silent).
• Negligently — the defendant should have been aware of a substantial and unjustifiable risk.

The recklessly/negligently line is the most-tested distinction on the exam. Reckless requires conscious disregard — the defendant actually perceived the risk. Negligent means they should have but didn't. When a statute names no mental state, the MPC reads in recklessness; common law often defaults to general intent.

Concurrence

The guilty mind must exist at the time of the guilty act. If you form the intent to steal after you've already borrowed the item, there's a concurrence problem for larceny. Frequently tested as a subtle trap inside a larger fact pattern.

Causation

For result crimes (like homicide), the defendant's act must be both the actual cause ("but-for" cause) and the proximate/legal cause (the result was foreseeable and not broken by a superseding intervening cause). Independent intervening causes that are unforeseeable break the chain; dependent, foreseeable ones do not. Medical malpractice by treating physicians and the victim's own subsequent conduct are classic intervening-cause fact patterns.

Homicide: the murder-manslaughter ladder

If you learn one topic cold, learn this one. Homicide is tested on nearly every Criminal Law exam because the same killing can be graded up or down depending on mental state and mitigation. Your job is to run a killing all the way up and down the ladder.

• Murder — an unlawful killing with malice aforethought. Malice is satisfied four ways: (1) intent to kill, (2) intent to cause serious bodily harm, (3) depraved-heart / reckless indifference to human life, or (4) felony murder.
• First-degree murder — typically premeditated, deliberate, and willful killing, or killing during an enumerated felony. Premeditation requires only a moment of reflection in most jurisdictions.
• Second-degree murder — the catch-all: murder that isn't first-degree (intent-to-kill without premeditation, intent-to-do-serious-harm, depraved heart).
• Voluntary manslaughter — an intentional killing mitigated by adequate provocation (heat of passion) or imperfect self-defense. The provocation must be something that would inflame a reasonable person, with no cooling-off period.
• Involuntary manslaughter — an unintentional killing through criminal negligence or during an unlawful act (misdemeanor-manslaughter).

Felony murder is its own exam machine. A death caused during the commission of an inherent felony (BARRK: burglary, arson, rape, robbery, kidnapping) is murder even without intent to kill. Watch for the limiting doctrines your professor tests: the inherently-dangerous felony requirement, the merger doctrine (the underlying felony can't be an assault that merges into the killing), the res gestae requirement (the death must occur during the felony and its immediate aftermath), and the agency vs. proximate-cause split on whether a felon is liable when a co-felon or bystander is killed by police.

Inchoate crimes: attempt, conspiracy, solicitation

Inchoate crimes let the state punish incomplete conduct.

• Attempt — specific intent to commit the crime plus a substantial step (MPC) or an act beyond mere preparation (common law) toward completion. Key issue: how far past preparation. Impossibility — factual impossibility is no defense; legal impossibility traditionally is (the MPC largely abolishes the distinction).
• Conspiracy — an agreement between two or more people to commit a crime, with intent to agree and intent to achieve the objective. Most jurisdictions require an overt act; common law did not. Conspiracy does not merge with the completed crime — you can be convicted of both. Under Pinkerton, a conspirator is liable for the reasonably foreseeable crimes of co-conspirators committed in furtherance of the conspiracy (the MPC rejects Pinkerton).
• Solicitation — enticing, encouraging, or commanding another to commit a crime, with intent that it be committed. Merges into attempt or the completed crime.

Accomplice liability

An accomplice — one who aids, abets, encourages, or facilitates a crime with the intent that the crime be committed — is liable for the substantive offense as if they committed it, plus (in most jurisdictions) the natural and probable consequences. The exam trap: mere presence, or knowledge without intent to assist, is not enough. Withdrawal is a defense only if the accomplice takes affirmative steps to negate their assistance (or notifies authorities) before the crime occurs.

Defenses: justifications and excuses

Always run defenses last, for every defendant, even when they seem weak — the points live in raising them. Defenses split into two conceptual buckets:

Justifications (the act was right)

• Self-defense — reasonable belief of imminent unlawful force, using proportionate force. Deadly force requires a reasonable belief of imminent death or serious bodily harm. Watch the duty to retreat split (minority retreat rule vs. majority/stand-your-ground; castle doctrine exception). Imperfect self-defense (honest but unreasonable belief) mitigates murder to voluntary manslaughter.
• Defense of others and property — parallel rules; deadly force is never justified to protect property alone.
• Necessity — choosing the lesser evil to avoid a greater harm caused by natural forces. Traditionally unavailable for homicide.

Excuses (the actor isn't blameworthy)

• Insanity — know the four tests and which your course uses: M'Naghten (didn't know the nature/quality of the act or that it was wrong), Irresistible Impulse, Durham (product test), and the MPC test (lacked substantial capacity to appreciate criminality or conform conduct).
• Duress — a threat of imminent death or serious bodily harm coercing the crime. Not a defense to intentional homicide in most jurisdictions.
• Intoxication — voluntary intoxication can negate specific intent only; involuntary intoxication is treated like insanity.
• Mistake — mistake of fact is a defense if it negates the required mental state (any reasonable mistake for general intent; any honest mistake for specific intent). Mistake of law is generally not a defense.

The common exam fact patterns and issue-spotting framework

Criminal Law issue-spotters recur in predictable shapes. When you read the fact pattern, look for these:

• The bar fight / escalation — tests provocation, self-defense, imperfect self-defense, and the homicide ladder.
• The robbery gone wrong — tests felony murder, its limiting doctrines, and accomplice liability for co-felons.
• The group plan — tests conspiracy, Pinkerton liability, accomplice liability, and withdrawal.
• The failed crime — tests attempt, impossibility, and abandonment.
• The reckless-vs-negligent driver — tests the mens rea ladder and involuntary manslaughter vs. depraved-heart murder.

Your issue-spotting method: (1) list every defendant, (2) for each, list every act, (3) for each act, name every plausible crime, (4) run every element of each crime, (5) run every defense, (6) conclude. Do this mechanically and you will not miss issues under time pressure.

The high-frequency tested areas

Not all topics are weighted equally. If you're triaging your study time, the heaviest-tested areas are: mens rea distinctions (especially reckless vs. negligent, and common law vs. MPC), the homicide ladder including felony murder, conspiracy and accomplice liability (because they let one fact pattern implicate many defendants), and self-defense and the homicide-mitigation defenses. Punishment theory and strict liability are lighter but show up in short-answer and policy questions.

How to attack the final

On exam day:

1. Read the call of the question first. "Discuss all crimes and defenses" is different from "Can the state convict X of murder?"
2. Chart the defendants and acts before you write. Two minutes here saves you missed issues.
3. Lead with the crime, then run elements in order. IRAC each element that's genuinely at issue; state and move on for elements that are obviously satisfied.
4. Always give both the common law and MPC answer where they diverge — mens rea, attempt, conspiracy, and defenses are the usual split points.
5. Run defenses for every defendant even when weak. Note that the burden allocation matters (the state proves elements; the defendant usually bears a burden of production on defenses).
6. Reach a conclusion, but reward the close call. The professor wants to see you resolve ambiguity with the rule and the facts, not dodge it.

The students who do best treat the exam as a checklist applied to chaos. The doctrine is finite; the fact patterns are infinite. Learn the framework in this outline cold and the facts become just another set of variables to plug in.