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Cheatography

Criminal Justice & the Law (Chapter 5) Cheat Sheet (DRAFT) by

• Explain the purpose of a defense to a criminal charge • Explain an affirmative defense • Distinguish between justifications and excuses (chap. 6) • Understand consent as a defense

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Key Cases

United States v. Thomas, 34 F.3d 44 (2nd Cir. 1994)
Regina v. Dudley and Stephens (1884)
Three seamen and one boy stranded at sea; the boy was sick. Two of the men ate the boys flesh and drank his blood, one did not. The two men raised a defense of necessity at trial, stating it was necessary to kill the boy in order for others to survive. Guilty; necessity cannot be used in murder cases.
Ferguson, Missouri
Grand jury hears testimony about the case where Officer Darren Wilson shoots and kills Michael Brown in Aug. 2014. Eyewit­nesses testify, as does the officer and ballistics reports are received into evidence. The Grand Jury did not indict and protests resulted. Officer claimed self-d­efense as he stated Brown had charged at him.
Treyvon Martin
Community watch coordi­nator, George Zimmerman, was chared with the 2nd degree murder in the killing of an unarmed 17-yea­r-old, Treyvon Martin. Zimmer­man's defense was self-d­efense based off "­Stand Your Ground­" law. Zimmerman argued that he had no choice but to shoot Martin after he attacked Zimmerman.
Daniel Penny Self Defens­e/D­efense of Others
Daniel Penny, a former Marine, was charged with mansla­ughter under the laws of the State of NY for putting a subway rider, Jordan Neely, on an uptown F train, in a chokehold after Neely threatened people on the train (calls to 911 said that he’d tried to attack people or indicated he’d harm riders, and several testified at trial that they feared for their lives). One female witness testified that he made lunging movements that alarmed her enough that she shielded her 5-year-old from him. Experts on both sides testified as to the cause of death (State – the chokehold, Defense – combined effects of K2, schizo­phr­enia, his struggle and restraint and a blood condition that can lead to fatal compli­cations during exertion). Neely was unarmed. The jury was deadlocked on the mansla­ughter charge so in a somewhat unusual move dismissed that charge which left standing the charge of criminally negligent homicide causing another person’s death. This charge in NY means engaging in serious “blame­worthy conduct” while not perceiving such a risk. Penny’s defense was that he was protecting himself and other subway passengers from a volatile, mentally ill man who was making alarming remarks and gestures. Multiple witnesses testified that Neely said he did not care if he died and went to jail. Prosec­utors said Penny reacted too forcefully by holding him in the chokehold for approx­imately six minutes. The jury acquitted Penny of criminally negligent homicide.
CLT Case of Door Dash Driver
In January 2025, a Door Dash driver, making a delivery uptown, told police he left his car running and saw a person in it when he returned. A struggle ensued and the person, a 15-yea­r-old, was killed. The Door Dash driver, 28, has been charged with first-­degree murder. This case is ongoing and the defendant is awaiting court-­app­ointed counsel.
Brock Turner Case in Palo Alto, CA
In 2016 former Stanford swimmer Brock Turner was sentenced to a 6-month jail term after being convicted of assaulting an uncons­cious woman on campus following a fraternity party that both had attended. This case led to changes in CA law which now requires affirm­ative consent (“yes means yes” law). The law goes further than the common “no means no” standard, which has been blamed for bringing ambiguity into invest­iga­tions of sexual assault cases. The law seeks to improve how univer­sities handle rape and sexual assault accusa­tions and to clarify the affirm­ative consent standard. This means that a sexual encounter should be considered assault unless each partic­ipant got a clear “yes” before every sexual act. States of NY and CT passed similar laws. ABA House of Delegates and Nat’l Assn of Crim Def Attys refuse to adopt this Affirm­ative Defense standard saying that it violated DP of the 5th and 14th A by shifting the burden of proof to the D.

Vocabulary

affirm­ative consent
a knowing, voluntary, and mutual decision among all partic­ipants to engage in sexual activity.
affirm­ative defense
a defense in which the defendant introduces evidence, which, if found to be credible, will negate criminal liability or civil liability, even if it is proven that the defendant committed the alleged acts.
apparent danger
a form of imminent danger that is said to exist when the conduct or activity of an attacker makes the threat of danger obvious.
castle exception
an exception to the retreat before using deadly self-d­efense if a party is in their own home.
consent
a person volunt­arily and willfully agrees in response to another person's propos­ition.
deadly force
refers to force which is likely to cause death or serious bodily injury.
defense
an act of protecting one's own interests.
excuse
an explan­ation stated in court as the grounds for exempting oneself from liability.
execut­ion­-of­-pu­bli­c-d­uty­-de­fense
police officers may not be prosecuted where lawfully exercising their authority.
express consent
verbally expressed willin­gness to engage in a specified activity.
fleeing felon rule
a now-de­funct law enforc­ement practice that permitted officers to shoot a suspected felon who attempted to flee from a lawful arrest.
imperfect defense
a defense that someone uses when they tried to defend themselves or someone else but does it in a way that isn't fully legal or reason­able. It doesn't get them off the hook comple­tely, but it can lead to a lesser charge or a lighter punishment because their actions were partly unders­tan­dable.
justif­ication
a type of defense that exempts the defendant from liability because the defend­ant's actions were justified, or not wrong.
necessity
a defense to liability for unlawful activity where the conduct cannot be avoided and one is justified in the particular conduct because it will prevent the occurrence of a harm that is more serious.
perfect defense (alter ego rule)
a defense thatt results in an acquittal, making defendant innocent.
perfect self-d­efense
a claim of self-d­efense that meets all of the generally accepted legal conditions for such a claim to be valid.
reasonable force
a degree of force that is approp­riate in a given situation and is not excessive; the minimum degree of force necessary to protect oneself, one's property, a third party, or the property of another in the face of a substa­ntial threat.
retreat rule
a doctrine in criminal law that states that if someone is being attacked, they must try to retreat to a safe place before using deadly force in self-d­efense.
self-d­efense
the use of force to protect oneself from an attempted injury by another.
stand your ground
a statute that permits the use of deadly force to repel life- or limb- threat­ening force in public spaces with no duty to retreat.