People v. Patterson
Doctrine Established:Constitutionality of Burden Allocation for Affirmative Defenses
Why is People v. Patterson significant?
This case upheld the constitutionality of placing the burden of proof on the defendant to prove the affirmative defense of extreme emotional disturbance by a preponderance of the evidence. The decision, later affirmed by the U.S. Supreme Court in Patterson v. New York, established that states may require defendants to prove affirmative defenses without violating due process, as long as the prosecution still bears the burden of proving every element of the crime beyond a reasonable doubt.
Why This Case Matters
This case upheld the constitutionality of placing the burden of proof on the defendant to prove the affirmative defense of extreme emotional disturbance by a preponderance of the evidence. The decision, later affirmed by the U.S. Supreme Court in Patterson v. New York, established that states may require defendants to prove affirmative defenses without violating due process, as long as the prosecution still bears the burden of proving every element of the crime beyond a reasonable doubt.
Facts
Patterson shot and killed John Northrup, who had been having an affair with Patterson's estranged wife. Patterson came upon Northrup and his wife together through a window and, in a state of emotional turmoil, retrieved a rifle and shot Northrup. Patterson was charged with second-degree murder under New York law, which defined murder as intentionally causing the death of another person. He raised the affirmative defense of extreme emotional disturbance, which if proven would reduce the charge to manslaughter.
Procedural History
Patterson was convicted of second-degree murder after the jury rejected his extreme emotional disturbance defense. He appealed, arguing that requiring him to bear the burden of proving the defense violated due process under the Fourteenth Amendment. The New York Court of Appeals affirmed the conviction. The U.S. Supreme Court subsequently affirmed in Patterson v. New York, 432 U.S. 197 (1977).
Issue
Whether due process is violated when a state places the burden on the defendant to prove the affirmative defense of extreme emotional disturbance by a preponderance of the evidence, rather than requiring the prosecution to disprove it beyond a reasonable doubt.
Holding
The court held that New York's allocation of the burden of proving extreme emotional disturbance to the defendant did not violate due process. The prosecution was still required to prove every element of the crime (intent and causation of death) beyond a reasonable doubt. The extreme emotional disturbance defense was an affirmative defense that operated to reduce the grade of the offense, not to negate an element of the crime.
Reasoning & Analysis
The court distinguished between elements of the crime, which the prosecution must prove beyond a reasonable doubt, and affirmative defenses, which the legislature may allocate to the defendant. Under New York's statutory scheme, extreme emotional disturbance was structured as an affirmative defense rather than as a negation of the malice element of murder. This legislative choice was permissible because it did not relieve the prosecution of its burden to prove every element of the charged offense. The court noted that states have broad discretion to define crimes and defenses, and that the Due Process Clause does not require states to treat every mitigating factor as an element the prosecution must disprove. The approach was contrasted with the common law provocation defense, which was treated as negating the malice element of murder.
Key Quotes
“The Due Process Clause requires the prosecution to prove beyond a reasonable doubt all of the elements included in the definition of the offense of which the defendant is charged.”
“A State may recognize a factor as a defense and require that the defendant bear the burden of proving it.”
“The distinction between elements of the crime and affirmative defenses is constitutionally significant.”
Legacy & Impact
Patterson is one of the most important cases on the constitutional boundaries of burden allocation in criminal law. The Supreme Court's affirmance in Patterson v. New York established the principle that states may place the burden of proving affirmative defenses on the defendant without violating due process, a principle that has been applied to defenses such as insanity, self-defense (in some jurisdictions), and duress. The case is central to debates about the manipulation of elements and defenses to shift burdens of proof.
Exam Relevance
Patterson is tested in questions about burden of proof, the structure of criminal offenses, and the distinction between elements and affirmative defenses. Exam questions may ask students to analyze whether a particular defense negates an element of the crime or is a true affirmative defense, and what burden of proof attaches to each. The case is also used in questions about legislative manipulation of criminal statutes to shift burdens.
Study Tips
- 1Understand the critical distinction between elements of the crime (prosecution must prove beyond a reasonable doubt) and affirmative defenses (may be placed on the defendant).
- 2Learn how New York restructured the traditional provocation defense as an affirmative defense of extreme emotional disturbance, shifting the burden to the defendant.
- 3Connect this case to In re Winship, which established the beyond-a-reasonable-doubt standard for elements of the crime.
- 4Be prepared to critique the elements-vs-defenses distinction on policy grounds, including the concern that legislatures could manipulate statutes to avoid Winship's requirements.