Study guide
9.5 Scope of Accomplice Liability, Withdrawal & Parties to Crime
California First-Year Law Students' Examination Baby Bar
Track your progress as you read
Finished sections get a check mark.
1 Introduction & FYLSE Examination Guide
1.1 FYLSE Exam Structure, Passing Standard & Administration 1.2 Study Method, Pacing & MBE-Style Technique
2 Contracts: Mutual Assent, Capacity & Contract Formation
2.1 The Offer & Objective Theory of Assent 2.2 Termination & Irrevocability of Offers 2.3 Acceptance & the Mailbox Rule 2.4 Mirror Image Rule & UCC 2-207 Battle of the Forms 2.5 Mistake in Contract Formation 2.6 Fraud, Duress, Undue Influence & Illegality 2.7 Capacity to Contract
3 Contracts: Consideration, Estoppel & Implied Obligations
3.1 Consideration & the Bargained-For Exchange 3.2 Past & Moral Consideration, Pre-Existing Duty & Modification 3.3 Promissory Estoppel & Detrimental Reliance 3.4 Implied-in-Fact Contracts & Quasi-Contract 3.5 Implied Covenant of Good Faith, Fair Dealing & Indefinite Terms
4 Contracts: Third-Party Beneficiaries, Assignment & Delegation
4.1 Third-Party Beneficiary Contracts 4.2 Assignment of Rights 4.3 Delegation of Duties
5 Contracts: Statute of Frauds, Parol Evidence & Interpretation
5.1 Statute of Frauds: Contracts Within the Statute 5.2 Satisfying the Statute: Writing, Signature & Exceptions 5.3 The Parol Evidence Rule 5.4 Contract Interpretation & Canons of Construction
6 Contracts: Performance, Conditions, UCC Warranties & Breach
6.1 Conditions: Express, Constructive & Excuse 6.2 Substantial Performance vs. Perfect Tender 6.3 Cure, Rejection, Revocation & Installment Contracts 6.4 UCC Article 2 Warranties & Risk of Loss 6.5 Anticipatory Repudiation & Insecurity
7 Contracts: Remedies, Discharge & Changed Circumstances
7.1 Expectation Damages & Their Limitations 7.2 Reliance, Restitution & Liquidated Damages 7.3 Specific Performance & Injunctive Relief 7.4 UCC Article 2 Buyer's and Seller's Remedies 7.5 Impossibility, Impracticability & Frustration of Purpose 7.6 Discharge by Agreement: Rescission, Novation & Accord and Satisfaction
8 Criminal Law: Principles of Criminal Liability & Mens Rea
8.1 Actus Reus, Voluntary Acts & Omissions 8.2 Criminal Causation & Intervening Causes 8.3 Common Law & Model Penal Code Mens Rea 8.4 Mistake of Fact, Mistake of Law & Concurrence
9 Criminal Law: Inchoate Offenses & Accomplice Liability
9.1 Criminal Attempt & Impossibility 9.2 Solicitation & the Merger Doctrine 9.3 Conspiracy & Merger Doctrine 9.4 Accomplice Liability: Actus Reus & Mens Rea 9.5 Scope of Accomplice Liability, Withdrawal & Parties to Crime
10 Criminal Law: Homicide & Crimes Against the Person
10.1 Common Law Murder & Malice Aforethought 10.2 Degrees of Murder, Premeditation & Deliberation 10.3 The Felony Murder Rule & Its Limitations 10.4 Voluntary & Involuntary Manslaughter 10.5 Non-Homicide Crimes Against the Person
11 Criminal Law: Property Crimes, Theft & Habitation
11.1 Common Law Larceny 11.2 Embezzlement & False Pretenses 11.3 Robbery & Extortion 11.4 Receiving Stolen Property 11.5 Burglary 11.6 Arson
12 Criminal Law: Defenses: Capacity, Justification & Excuse
12.1 Insanity: The Four Legal Tests 12.2 Intoxication, Diminished Capacity & Infancy 12.3 Self-Defense & Defense of Others 12.4 Defense of Property, Habitation & Law Enforcement Privileges 12.5 Duress & Necessity 12.6 Entrapment & Mistake as an Excuse
13 Torts: Intentional Torts to Persons & Property
13.1 Intent, Motive & Incapacity in Intentional Torts 13.2 Transferred Intent 13.3 Battery & Assault 13.4 False Imprisonment 13.5 Trespass to Land 13.6 Trespass to Chattels & Conversion
14 Torts: Privileges & Defenses to Intentional Torts
14.1 Consent: Express, Implied & Capacity 14.2 Exceeding & Vitiating Consent 14.3 Self-Defense & Defense of Others (Tort) 14.4 Defense of Property & Recapture of Chattels 14.5 Public & Private Necessity 14.6 The Shopkeeper's Privilege
15 Torts: Negligence — Duty of Care & Breach
15.1 Duty of Care & the Foreseeable Plaintiff 15.2 Affirmative Duties to Act & Special Relationships 15.3 Standard of Care: The Reasonable Person & Children 15.4 Professional Negligence, Informed Consent & Negligence Per Se 15.5 Land Possessor Liability & Premises Duties 15.6 Breach of Duty & Res Ipsa Loquitur
16 Torts: Causation, Defenses, Multiple Tortfeasors, Wrongful Death & Damages
16.1 Cause in Fact & Multiple Actors 16.2 Proximate Cause & Intervening Forces 16.3 Contributory, Comparative Negligence & Assumption of Risk 16.4 Joint and Several Liability, Contribution & Indemnity 16.5 Vicarious Liability & Non-Delegable Duties 16.6 Wrongful Death & Survival Actions 16.7 Statute of Limitations & Claim Accrual 16.8 Tort Damages: Compensatory, Nominal, Punitive & Mitigation
17 Torts: Strict Liability & Products Liability
17.1 Strict Liability for Animals 17.2 Abnormally Dangerous Activities & Scope of Risk 17.3 Strict Products Liability & Defect Categories 17.4 Products Liability Under Negligence, Warranty & Misrepresentation 17.5 Defenses to Products Liability
18 Torts: Emotional Distress, Defamation, Privacy & Economic Torts
18.1 Intentional Infliction of Emotional Distress 18.2 Negligent Infliction of Emotional Distress 18.3 Common Law Defamation: Elements, Libel & Slander 18.4 Constitutional Limits, Privileges & Defenses to Defamation 18.5 Invasion of Privacy 18.6 Nuisance & Economic Torts
9.5 Scope of Accomplice Liability, Withdrawal & Parties to Crime
Key Takeaways Explain This Topic AI
An accomplice is liable for the crime aided and for other crimes that were a natural and probable consequence of the conduct assisted.
Withdrawal requires repudiation communicated to the principal, neutralising any aid already given, and doing so before the chain of events becomes unstoppable.
Merely having a change of heart, or failing to show up, does not withdraw a defendant who has already supplied material assistance.
At common law the parties were the principal in the first degree, principal in the second degree, accessory before the fact, and accessory after the fact.
An accessory after the fact is liable only for a separate, lesser offense of obstruction rather than for the underlying felony, and most modern codes have abolished the other distinctions.
Last updated: September 2026
- Scope of Accomplice Liability, Withdrawal & Parties to Crime
- I. Scope of Accomplice Liability: The Natural and Probable Consequences Doctrine
Once an individual qualifies as an accomplice to a target offense, how far does their criminal exposure extend? ┌──────────────────────────────────────┐
- │ Natural & Probable Consequences │
- └──────────────────┬───────────────────┘
- │
- ┌─────────────────────────┴─────────────────────────┐
- ▼ ▼
- [Planned Target Crime] [Secondary Crimes]
- Intended to aid Crime A - Principal commits secondary Crime B
- Accomplice fully liable for Crime A - Accomplice liable for Crime B IF:
- Crime B was a natural, probable, and
- REASONABLY FORESEEABLE consequence
- 1. The Rule
Under the natural and probable consequences doctrine , an accomplice is criminally responsible not only for the specific target crime they intended to assist, but also for any other crimes committed by the principal that were a natural, probable, and reasonably foreseeable consequence of the target offense.
2. Application and Limitations
Foreseeability Standard: The test is objective: would a reasonable person in the accomplice's position foresee that the secondary crime might result from the execution of the primary crime?
Classic Exam Scenario: Accomplice assists Principal in executing an armed robbery of a jewelry store by handing Principal a loaded revolver. Accomplice strictly commands: "Do not shoot anyone under any circumstance!" Inside, a security guard draws a baton, and Principal shoots and kills the guard. Accomplice is guilty of Murder . Lethal gunfire is a natural and probable consequence of armed robbery, and Accomplice's private verbal admonition does not negate objective foreseeability.
Independent, Unforeseeable Detours: If the principal commits an independent felony completely unrelated to the target crime and outside the scope of the criminal enterprise, the accomplice is not liable. For example, if Accomplice aids Principal in shoplifting tools from a hardware store, and Principal detours into the parking lot to commit an independent sexual assault, Accomplice is not liable for the assault.
II. Withdrawal and Renunciation by an Accomplice
An individual who has provided aid or encouragement may terminate their status as an accomplice and avoid liability for the completed crime through effective and timely withdrawal .
Requirements for Valid Withdrawal
To withdraw effectively, the accomplice must satisfy specific affirmative requirements before the crime is unstoppable :
Repudiation of Encouragement: If the accomplice's assistance consisted solely of verbal counseling, advice, or encouragement, the accomplice must wholly repudiate that encouragement to the principal prior to the commission of the crime.
Neutralization of Physical Aid: If the accomplice provided physical assistance (e.g., weapons, tools, floorplans, or a vehicle), the accomplice must neutralize the assistance —such as taking back the weapon or disabling the getaway car.
Notification to Law Enforcement: If the accomplice cannot retrieve the aid or repudiate the encouragement in time, the accomplice must notify the police or take other decisive steps to prevent the commission of the crime .
Timing: The withdrawal must be communicated before the crime is in progress . Once the principal begins the perpetration of the crime (e.g., drawing the gun inside the bank), it is too late to withdraw.
III. Parties to Crime: Common Law Classifications vs. Modern Statutory Reforms
At common law, parties to felony offenses were rigidly categorized into four distinct classes, each carrying technical procedural consequences.
1. Common Law Classifications
Principal in the First Degree: The actual perpetrator who physically performs the actus reus with the requisite mens rea (or who accomplishes the crime through an innocent human agent or inanimate instrumentality).
Principal in the Second Degree: An individual who is present at the scene of the crime, actively or constructively aiding and abetting the principal in the first degree (e.g., a lookout stationed at the corner, or a getaway driver waiting outside).
Accessory Before the Fact: An individual who aids, counsels, commands, or encourages the commission of the felony beforehand, but who is absent from the scene during actual commission (e.g., the mastermind who plans the heist or the weapons supplier who remains at home).
Accessory After the Fact: An individual who, knowing that a felony has been completed , receives, comforts, harbors, conceals, or assists the felon with the specific intent to help the felon escape detection, arrest, trial, or punishment.
2. Common Law Procedural Obstacles (Now Abolished)
At traditional common law:
An accessory could not be tried or convicted prior to the principal in the first degree;
If the principal in the first degree was acquitted, died, or evaded capture, the accessory could not be convicted;
A defendant indicted as an accessory could not be convicted if the evidence proved they were a principal.
3. Modern Statutory Reforms
Modern penal codes have eliminated these complex procedural distinctions:
Abolition of Distinctions Among Perpetrators and Aiders: Modern statutes treat Principals in the First Degree, Principals in the Second Degree, and Accessories Before the Fact identically as principals . All can be indicted, tried, and convicted of the substantive crime, regardless of whether the actual perpetrator has been identified, captured, tried, or acquitted.
Accessory After the Fact as an Independent Offense: Under modern law, an accessory after the fact is NOT liable for the underlying substantive felony . Instead, post-crime assistance is punished as a separate, distinct offense—such as harboring a fugitive, obstructing justice, or hindering apprehension—carrying an independent, lesser penalty.
Comparison Table: Party Classifications
Classification Common Law Definition Presence at Scene Modern Statutory Treatment
Principal in 1st Degree Actual physical perpetrator. Present Charged and punished as principal.
Principal in 2nd Degree Present, aiding and abetting (lookout/driver). Present (actual or constructive) Abolished distinction; charged as principal.
Accessory Before Fact Aided/encouraged before crime. Absent Abolished distinction; charged as principal.
Accessory After Fact Harbored/assisted felon after completed crime. Absent during crime Not liable for underlying crime ; guilty of separate obstruction/hindering offense.