Bar Exam MBE Criminal Law Review

Mastering the Criminal Law and Procedure portion of the Multistate Bar Examination (MBE) is critical. This subject tests not only your recall of black letter law but also your ability to apply intricate legal standards to complex fact patterns. A high score here requires a precise understanding of the hierarchy of mental states, the elements of major crimes, and the nuanced constitutional protections that govern criminal procedure from investigation to sentencing.

Foundational Principles: Mental States and Actus Reus

Every MBE criminal law question is built upon the core concept of culpability. To secure a conviction, the prosecution must generally prove both a guilty mind (mens rea) and a guilty act (actus reus) beyond a reasonable doubt. The Model Penal Code’s (MPC) mental states are heavily tested. You must be able to distinguish between:

• Purposefully: Conscious object to engage in conduct or cause a result.
• Knowingly: Awareness that conduct is of a certain nature or that a result is practically certain.
• Recklessly: Conscious disregard of a substantial and unjustifiable risk.
• Negligently: Failure to be aware of a substantial and unjustifiable risk where the actor should have been aware.

The actus reus is the voluntary physical act that constitutes the crime. Remember, an omission can only satisfy the actus reus if there is a legal duty to act, arising from statute, contract, relationship, or voluntary assumption of care. For MBE strategy, always identify the precise mental state required for each element of the crime charged; a mistake in this analysis is a common trap.

Homicide: A Hierarchical Analysis

Homicide questions demand a structured, hierarchical approach. Start by determining if the killing was unlawful, then apply the following framework:

1. Murder: At common law, murder is the unlawful killing of another human being with malice aforethought. Malice can be shown by: (a) intent to kill, (b) intent to inflict grievous bodily harm, (c) depraved heart (reckless indifference to human life), or (d) intent to commit a dangerous felony (felony murder). Under the MPC, murder requires purpose, knowledge, or recklessness under circumstances manifesting extreme indifference to human life.
2. Voluntary Manslaughter: This is an intentional killing that is mitigated from murder due to adequate provocation (causing a sudden heat of passion) before there has been a reasonable opportunity to cool off. The key is the reasonable person standard—would a reasonable person have been provoked and not cooled off?
3. Involuntary Manslaughter: This is an unintentional killing resulting from criminal negligence (gross deviation from standard of care) or during the commission of a misdemeanor or unlawful act (misdemeanor-manslaughter rule).
4. Felony Murder: A killing, even an accidental one, committed during the course of a dangerous felony (BARRK: Burglary, Arson, Rape, Robbery, Kidnapping) is murder. Focus on the limitations: the killing must be in furtherance of the felony and during its commission. The death of a co-felon at the hands of police or a victim typically does not qualify.

Theft Offenses and Inchoate Crimes

These crimes test your ability to distinguish between overlapping but distinct definitions.

Theft Crimes:

• Larceny: The trespassory taking and carrying away of the personal property of another with intent to permanently deprive.
• Embezzlement: The fraudulent conversion of the property of another by a person already in lawful possession of that property.
• False Pretenses: Obtaining title to the property of another through a known false representation of a material past or present fact with intent to defraud.
• Robbery: Larceny + force or threat of imminent force against a person.
• Burglary: At common law, the breaking and entering of the dwelling of another at night with intent to commit a felony inside.

Inchoate Crimes: These are incomplete crimes. Know the defenses:

• Solicitation: Asking another to commit a crime with intent that they do so. Defense: Renunciation must be voluntary and complete, and must prevent the crime.
• Conspiracy: An agreement between two or more persons to commit an unlawful act with an intent to agree and intent to achieve the objective. The MPC requires an overt act in furtherance; common law does not. Focus on the Pinkerton rule, where conspirators are liable for foreseeable crimes of co-conspirators in furtherance of the conspiracy.
• Attempt: A substantial step toward the commission of a crime, coupled with the specific intent to commit the crime. Legal impossibility is a defense; factual impossibility is not.

Defenses: Justification and Excuse

Defenses negate liability. Categorize them to avoid confusion:

• Justifications (Act is socially acceptable): Self-defense (reasonable belief of imminent harm, proportional force; no duty to retreat in one’s home), defense of others, defense of property (non-deadly force only), necessity (choice of lesser evils, natural forces).
• Excuses (Actor is not blameworthy): Duress (threat of imminent death or serious bodily harm by another person; generally not a defense to homicide), insanity. Know the insanity tests: M’Naghten (cognitive: didn’t know nature/quality of act or that it was wrong), MPC (volitional: lacks substantial capacity to conform conduct), Irresistible Impulse (volitional).
• Other Key Defenses: Intoxication is voluntary (negates specific intent only) or involuntary (may negate all mens rea). Mistake of fact can negate mens rea if honest and reasonable (for general intent) or just honest (for specific intent). Mistake of law is rarely a defense.

Constitutional Criminal Procedure

This is a massive MBE subject. Your analysis must follow the sequential stages of a criminal case.

Fourth Amendment – Search & Seizure: The core is reasonableness. A warrant requires probable cause. Key exceptions to the warrant requirement include search incident to lawful arrest (limited to person and wingspan), automobile exception (PC needed), plain view, consent, and stop and frisk (Terry stop: reasonable suspicion of crime; frisk requires RS that the person is armed and dangerous). The exclusionary rule generally bars evidence obtained in violation of the 4th Amendment.

Fifth Amendment – Privileges: The Double Jeopardy clause prohibits a second prosecution for the same offense after acquittal or conviction. The Self-Incrimination clause protects against compelled testimonial evidence. A valid Miranda warning is required for custodial interrogation. Confessions must also be voluntary under due process.

Sixth Amendment – Trial Rights: The right to Counsel attaches at critical stages (arraignment, post-indictment lineups, plea hearings, trial). If this right is denied, any subsequent conviction is automatically reversed. The Confrontation Clause prohibits the admission of testimonial hearsay (e.g., lab reports, police interrogation statements) unless the declarant is unavailable and the defendant had a prior chance to cross-examine.

Eighth Amendment – Punishment: The Cruel and Unusual Punishments clause prohibits grossly disproportionate sentences. For the death penalty, the jury must find at least one statutory aggravating factor beyond a reasonable doubt.

Common Pitfalls

1. Confusing Malice Aforethought with Premeditation: On the MBE, "malice aforethought" is a broad term encompassing several mental states (intent to kill, intent to inflict GBH, depraved heart, felony murder). "Premeditation" is a factor for first-degree murder in some jurisdictions but is not required for common law murder. Don't automatically equate an intentional killing without premeditation with manslaughter.
2. Misapplying Felony Murder Limits: The felony murder rule has strict boundaries. If the defendant has completed the underlying felony (e.g., reached a place of temporary safety after robbery) or the death is unrelated to the felony, the rule does not apply. Also, remember the agency rule: deaths caused by a third party (e.g., police officer) fleeing from co-felons typically do not trigger felony murder liability for the felons.
3. Mixing Up Fourth and Fifth Amendment Analyses: A "seizure" under the 4th Amendment (Terry stop, arrest) is different from "custody" for Miranda purposes. A traffic stop is a seizure but is not necessarily "custodial interrogation" requiring Miranda. Always ask the separate questions: (1) Was the stop/arrest supported by RS/PC? (4th Am.), and (2) Was the suspect in custody and subject to interrogation? (5th Am.).
4. Overlooking the Right to Counsel Attachment Point: The 6th Amendment right to counsel is "offense-specific." It attaches only for the charged offense. If police question a charged defendant about an unrelated crime without counsel present, those statements may be admissible, even if the defendant has a lawyer for the charged crime.

Summary

• Analyze Hierarchically: For homicide, apply the murder → voluntary manslaughter → involuntary manslaughter framework systematically, checking for mitigating factors like heat of passion.
• Precision in Mental States: Determine the exact mens rea (purposely, knowingly, recklessly, negligently) required for each element of the crime. Mistake of fact and intoxication defenses hinge on this analysis.
• Know the Theft Distinctions: The key difference between larceny, embezzlement, and false pretenses often lies in when the intent to permanently deprive formed and whether the defendant had possession or title.
• Constitutional Sequencing: Approach procedure questions by constitutional amendment and procedural stage: 4th (search/seizure pre-trial), 5th (Miranda, interrogation), 6th (counsel, trial), 8th (sentencing).
• Focus on Application, Not Memorization: The MBE tests application. For every answer choice, be able to articulate the legal rule and why it does or does not apply to the nuanced facts presented. Eliminate answers that state correct law but misapply it.