The most important Supreme Court and federal appellate decisions shaping your constitutional rights during police encounters — explained in plain language with practical guidance on how to use them.
384 U.S. 436 — Right to Be Informed Before Questioning
Ernesto Miranda was arrested and interrogated by Phoenix police for two hours without being informed of his right to an attorney or his right to remain silent. He signed a written confession that was used to convict him of kidnapping and rape. Miranda appealed, arguing the confession was coerced because he didn't know he could refuse to answer. (Oyez: Miranda v. Arizona)
The Supreme Court ruled 5-4 that the Fifth Amendment requires law enforcement to advise suspects of their rights before custodial interrogation. This created the now-famous "Miranda warnings": the right to remain silent, that anything said can be used against you, the right to an attorney, and that one will be appointed if you cannot afford one. Statements obtained without these warnings are inadmissible.
If police take you into custody and begin questioning you without reading your Miranda rights, any statements you make — and any evidence discovered as a result — can be thrown out of court. This is one of the most powerful protections against self-incrimination in American law.
392 U.S. 1 — Stop and Frisk Doctrine
Cleveland detective Martin McFadden observed John Terry and two other men repeatedly walking past a store and conferring, behavior he suspected was preparation for a robbery. McFadden approached the men, identified himself, and patted down their outer clothing, discovering concealed weapons. Terry was convicted of carrying a concealed weapon and appealed, arguing the search violated his Fourth Amendment rights. (Oyez: Terry v. Ohio)
The Court ruled 8-1 that officers may conduct a brief investigatory stop (a "Terry stop") when they have reasonable articulable suspicion that criminal activity is afoot. During such a stop, if the officer reasonably believes the person is armed and dangerous, they may conduct a limited pat-down of outer clothing for weapons — but not a full search. This established that "reasonable suspicion" is a lower standard than "probable cause."
Terry stops have strict limits. Officers cannot stop you on a mere hunch — they need specific, articulable facts. A pat-down is limited to feeling for weapons on the outside of clothing. They cannot reach into pockets or manipulate objects unless they feel something that is immediately identifiable as a weapon. Any evidence found during an illegal Terry stop can be suppressed.
367 U.S. 643 — Exclusionary Rule
Cleveland police forced their way into Dollree Mapp's home without a valid search warrant, claiming they were looking for a bombing suspect. When Mapp demanded to see a warrant, officers held up a piece of paper (which was never produced at trial). During their search, they found obscene materials and convicted Mapp under Ohio obscenity law.
The Supreme Court ruled 6-3 that the exclusionary rule — which prohibits the use of illegally obtained evidence in federal court — also applies to state courts through the Fourteenth Amendment's Due Process Clause. This means evidence obtained through an unconstitutional search or seizure cannot be used against a defendant in any American court. The decision also reinforced the "fruit of the poisonous tree" doctrine: evidence derived from an illegal search is also inadmissible.
This case gives the Fourth Amendment real teeth. Without the exclusionary rule, police would have little incentive to respect your right against unreasonable searches. If officers search you, your car, or your home illegally, any evidence they find — and anything discovered as a result of that evidence — can be excluded from your trial.
575 U.S. 348 — Traffic Stop Duration Limits
Dennys Rodriguez was stopped for driving on the highway shoulder. After the officer completed the traffic stop — issuing a written warning — he asked Rodriguez for permission to walk a drug-sniffing dog around the vehicle. Rodriguez refused. The officer detained him for 7-8 additional minutes until a second officer arrived with a K-9 unit, which alerted to drugs. Rodriguez was convicted on federal drug charges.
The Supreme Court ruled 6-3 that a police officer may not extend a traffic stop beyond the time needed to handle the matter for which the stop was made — even by just a few minutes — without reasonable suspicion of additional criminal activity. A dog sniff is not part of an officer's traffic mission, so extending the stop to conduct one violates the Fourth Amendment unless the officer has independent reasonable suspicion.
This is a critical case for every driver. Police cannot use a routine traffic stop as a fishing expedition. Once the purpose of the stop is complete — the ticket is written, the warning is issued — the officer must let you go unless they have separate, articulable reasonable suspicion of another crime. Even a delay of a few minutes is unconstitutional.
573 U.S. 373 — Cell Phone Search Requires a Warrant
David Riley was pulled over for expired registration tags and subsequently arrested on weapons charges. During the arrest, officers seized his smartphone and searched it without a warrant, finding photos, videos, and text messages linking him to a gang shooting. The evidence from the phone was used to charge him with additional crimes including attempted murder.
In a unanimous 9-0 decision, the Supreme Court held that police generally need a warrant to search a cell phone seized during an arrest. (Oyez: Riley v. California) Chief Justice Roberts wrote that cell phones are "such a pervasive and insistent part of daily life that the proverbial visitor from Mars might conclude they were an important feature of human anatomy." The Court recognized that the massive storage capacity and personal nature of cell phones make them fundamentally different from other items found during a search incident to arrest.
Your phone contains your entire digital life — emails, texts, photos, browsing history, location data, financial records, and medical information. The Court recognized that searching a phone is far more invasive than searching a wallet or pocket. Even if you are lawfully arrested, police cannot scroll through your phone without a warrant. This applies to all digital devices.
434 U.S. 106 — Officers Can Order You Out of the Car
Harry Mimms was stopped for driving with an expired license plate. The officer asked Mimms to step out of the car. When Mimms got out, the officer noticed a large bulge under his jacket and frisked him, discovering a loaded .38 caliber revolver. Mimms was charged with carrying a concealed weapon and argued the order to exit the car was an unreasonable seizure.
The Supreme Court held that an officer may, as a matter of course, order the driver of a lawfully stopped car to exit the vehicle. The Court weighed the driver's Fourth Amendment interest (the minor additional intrusion of exiting the car) against officer safety concerns and found that the safety interest outweighed the minimal additional intrusion. This was later extended to passengers in Maryland v. Wilson (1997).
You must comply with an order to exit your vehicle during a traffic stop — this is settled law. However, this does NOT authorize a search of your person or vehicle. Being ordered out of the car does not give officers permission to search your pockets, your bag, or your car. The officer needs separate justification (consent, probable cause, or a warrant) for any search beyond a limited weapons pat-down.
585 U.S. 296 — Cell Phone Location Data Requires a Warrant
Timothy Carpenter was suspected of involvement in a series of armed robberies. The FBI obtained 127 days of cell-site location information (CSLI) from his wireless carriers without a warrant, using only a court order under the Stored Communications Act (which has a lower standard than a warrant). This data provided 12,898 location points tracking Carpenter's movements and was used to place him at the crime scenes.
The Supreme Court ruled 5-4 that accessing historical cell-site location information constitutes a Fourth Amendment search and generally requires a warrant supported by probable cause. The Court rejected the government's argument that customers have no reasonable expectation of privacy in records held by a third party (the "third-party doctrine"). Chief Justice Roberts wrote that cell phone location data provides "an intimate window into a person's life."
Your cell phone constantly generates location data as it connects to cell towers. This case established that the government cannot obtain this treasure trove of personal information without a warrant. It signals the Court's recognition that Fourth Amendment protections must evolve with technology, and that digital records deserve strong constitutional protection.
462 U.S. 213 — Totality of Circumstances for Probable Cause
The Bloomingdale, Illinois police department received an anonymous letter alleging that Lance and Susan Gates were drug dealers who transported large quantities of drugs from Florida to Illinois. Police corroborated some details of the letter through surveillance. Based on the letter and surveillance, they obtained a search warrant and found 350 pounds of marijuana in the Gates' car and home.
The Supreme Court replaced the rigid two-prong Aguilar-Spinelli test for evaluating informant tips with the more flexible "totality of the circumstances" test. Under this standard, a magistrate evaluates whether all the facts and circumstances together establish a "fair probability" that contraband or evidence of a crime will be found. Anonymous tips can contribute to probable cause when corroborated by independent police investigation.
Understanding how probable cause works is essential to protecting your rights. Police need probable cause to arrest you, search your property, or obtain a warrant. While this case made it somewhat easier for police to establish probable cause using anonymous tips, it still requires corroboration. A bare anonymous tip alone is generally insufficient. If you believe a search warrant was issued without proper probable cause, your attorney can challenge it.
490 U.S. 386 — Excessive Force Standard
Dethorne Graham, a diabetic, asked a friend to drive him to a convenience store to buy orange juice to counteract an insulin reaction. Seeing a long line, he quickly left the store. Officer Connor became suspicious and made an investigatory stop. Despite Graham's friend explaining the medical situation, officers handcuffed Graham, slammed his head on the hood of the car, threw him headfirst into a squad car, and broke his foot. Graham sustained multiple injuries.
The Supreme Court unanimously established that all claims of excessive force during an arrest, investigatory stop, or other seizure must be analyzed under the Fourth Amendment's "objective reasonableness" standard — not the Fourteenth Amendment's "substantive due process" standard. The test considers: (1) the severity of the crime at issue, (2) whether the suspect poses an immediate threat to the safety of officers or others, and (3) whether the suspect is actively resisting or attempting to flee. This must be judged from the perspective of a reasonable officer on the scene.
This case defines how courts evaluate whether police used too much force against you. If you are the victim of excessive force, your attorney will use the Graham factors to argue that the force was unreasonable. The more clearly you can demonstrate that you were not threatening, not resisting, and suspected of only a minor offense, the stronger your excessive force claim will be.
471 U.S. 1 — Limits on Deadly Force
Memphis police officers responded to a burglary call. Officer Elton Hymon arrived and saw 15-year-old Edward Garner fleeing the scene by climbing a fence. Hymon could see Garner was unarmed and young. Under Tennessee law at the time, officers were authorized to use deadly force against any fleeing suspect. Hymon shot Garner in the back of the head, killing him. Garner had stolen $10 and a purse from the house.
The Supreme Court ruled 6-3 that the use of deadly force to prevent the escape of an apparently unarmed suspected felon violates the Fourth Amendment. Deadly force may only be used when the officer has probable cause to believe that the suspect poses a significant threat of death or serious physical injury to the officer or others. The Court struck down Tennessee's "fleeing felon" statute and similar laws across the country.
This case ended the centuries-old common law rule that allowed police to shoot any fleeing felon. Officers now can only use deadly force when a suspect poses a real danger. If you are fleeing (though not recommended) and are unarmed, an officer cannot legally shoot you simply to prevent escape. This case protects the most fundamental right — the right to life — from unreasonable government force.
655 F.3d 78 (1st Cir.) — Right to Film Police in Public
Simon Glik was walking through the Boston Common when he observed three police officers arresting a man. Believing the officers were using excessive force, Glik used his cell phone to openly record the arrest from about 10 feet away. The officers noticed Glik recording, arrested him, and charged him with illegal wiretapping, disturbing the peace, and aiding the escape of a prisoner. All charges were eventually dismissed.
The First Circuit Court of Appeals ruled that there is a clearly established First Amendment right to openly record police officers carrying out their duties in public spaces. The court held that this right flows from the First Amendment's protection of the right to gather news and information about public officials performing their duties. The officers' qualified immunity defense was rejected because the right to film was "clearly established." Multiple federal circuits have since reached the same conclusion.
While not a Supreme Court case, Glik is the leading federal appellate decision affirming your right to record police. Federal courts across the country have followed this ruling. Recording police is a constitutionally protected activity — officers cannot order you to stop recording, confiscate your phone, or arrest you for filming (though some state wiretapping laws may affect audio recording in certain circumstances). Video evidence is often the most powerful protection against police misconduct.
517 U.S. 806 — Pretextual Traffic Stops
Plainclothes vice-squad officers in an unmarked vehicle observed Michael Whren and James Brown sitting in a truck at a stop sign in a "high drug area" of Washington, D.C. The truck sat at the intersection for an unusually long time, then turned without signaling and drove away at an "unreasonable" speed. Officers stopped the truck for traffic violations and observed crack cocaine in plain view. Whren argued the traffic stop was a pretext for a drug investigation.
The Supreme Court unanimously held that the actual motivations of officers are irrelevant to the Fourth Amendment analysis. As long as an objective traffic violation has occurred — even a minor one like failing to signal — the stop is constitutional, regardless of the officer's true reason for making it. The Court refused to adopt a "reasonable officer" test that would ask whether a typical officer would have made the stop.
This case is controversial because it allows police to use any minor traffic violation as a pretext to stop someone they want to investigate for other reasons. Civil rights advocates argue this enables racial profiling — officers can selectively enforce minor traffic laws against drivers they want to stop based on race. While the Fourth Amendment may not prevent pretextual stops, the Equal Protection Clause of the Fourteenth Amendment prohibits racially motivated stops.
560 U.S. 370 — Must Affirmatively Invoke Right to Silence
Van Chester Thompkins was arrested for a shooting and read his Miranda rights. He did not explicitly invoke his right to remain silent or request an attorney. During a nearly three-hour interrogation, Thompkins was largely silent, giving only occasional one-word answers. Near the end, an officer asked, "Do you pray to God to forgive you for shooting that boy down?" Thompkins answered "Yes." This statement was used to convict him of first-degree murder.
The Supreme Court ruled 5-4 that a suspect who has been read Miranda warnings and who has not explicitly invoked the right to remain silent can be considered to have waived that right by making an uncoerced statement to police. Simply remaining silent is not enough — you must clearly and unambiguously state that you are invoking your right to remain silent. The Court also held that a waiver of Miranda rights can be implied from the suspect's conduct (i.e., choosing to speak).
This is perhaps the most important practical takeaway of any case on this page: silence alone is not enough to invoke your right to remain silent. You must explicitly say the words. If you simply sit quietly during questioning, police can continue to interrogate you, and anything you eventually say can be used against you. This seemingly paradoxical requirement makes it critical that you know exactly what to say.
412 U.S. 218 — Consent Searches & Your Right to Refuse
Robert Bustamonte was a passenger in a car stopped by police for a burned-out headlight and license plate light. The driver could not produce a license. The officer asked if he could search the car, and the driver's brother, Joe Alcala (who claimed ownership), said "Sure, go ahead." The search revealed three stolen checks under the rear seat. Bustamonte was convicted of possessing checks with intent to defraud.
Bustamonte argued the consent was invalid because Alcala was never informed of his right to refuse the search. The case went to the Supreme Court on the question: must police inform you that you can say no before a consent search is valid?
The Court ruled 6-3 that the validity of a consent search is determined by the "totality of the circumstances" — and that police are NOT required to inform you that you have the right to refuse. As long as consent is "voluntary" (not coerced through threats, force, or show of authority), it is valid even if the person did not know they could say no. Justice Marshall dissented sharply, arguing that consent without knowledge of the right to refuse is no consent at all.
This is one of the most consequential — and controversial — search and seizure cases. Police exploit this ruling every day. When an officer says "Mind if I take a look?" or "You don't have anything to hide, right?" they are counting on you not knowing that you can refuse. Studies show that the vast majority of people consent to police searches, even when they have something to hide, because they feel they have no choice. You ALWAYS have the right to refuse. The police just aren't required to tell you that.
Florida v. Bostick (1991) extended this to bus passengers. Georgia v. Randolph (2006) held that one occupant's refusal overrides another's consent. Fernandez v. California (2014) created an exception: if the refusing occupant is lawfully removed (arrested), the remaining occupant can consent.
501 U.S. 429 — Bus Searches & "Voluntary" Consent
Two Broward County sheriff's deputies boarded a Greyhound bus during a scheduled stop in Fort Lauderdale as part of a drug interdiction program. Without any suspicion, they approached Terrance Bostick, asked for his ticket and identification, and then asked permission to search his luggage. Bostick consented, and the search revealed cocaine. Bostick argued the encounter was a "seizure" because a reasonable person on a bus would not feel free to leave — the bus would depart without them.
The Supreme Court ruled 6-3 that the proper test is not whether a reasonable person would feel "free to leave" but whether a reasonable person would feel "free to decline the officers' requests or otherwise terminate the encounter." The Court held that police approaching bus passengers and asking to search their luggage does not automatically constitute a seizure, even though the passenger cannot physically leave the bus. If consent is voluntary, the search is valid.
This case is critical for anyone who uses public transportation. Police regularly board buses, trains, and even airplanes to conduct "voluntary" encounters. The key takeaway: you can always say no. Officers will not tell you that you can refuse. They may stand in the aisle blocking your path. They may use authority-laden language. But unless they have reasonable suspicion or probable cause, you are under no obligation to consent. Knowing you can refuse is your most powerful protection.
594 U.S. ___ — Hot Pursuit for Misdemeanors Does Not Justify Warrantless Home Entry
Arthur Lange was driving home playing loud music with his windows down. A California Highway Patrol officer activated his lights to pull Lange over for a noise infraction — a misdemeanor. Instead of stopping, Lange drove the short distance to his home and pulled into his garage. The officer followed, stuck his foot under the closing garage door to prevent it from shutting, and entered the garage without a warrant. Inside, the officer observed signs of intoxication and Lange was charged with DUI.
The Supreme Court ruled unanimously that the pursuit of a fleeing misdemeanor suspect does not categorically justify a warrantless entry into a home. Unlike felony hot pursuit (which generally does justify warrantless entry), officers pursuing someone for a minor offense must assess whether the specific circumstances create an exigency — such as risk of violence, destruction of evidence, or escape. The home is the most constitutionally protected space, and the Fourth Amendment's warrant requirement remains paramount.
Your home is your castle — the Fourth Amendment provides its strongest protections at your front door. This case reinforced that police cannot simply follow you inside for a minor offense and claim "hot pursuit." If you are suspected of only a misdemeanor, officers generally must get a warrant before entering your home. This is a significant limitation on police power and a vital protection for homeowners and renters.
532 U.S. 318 — Arrest for Any Criminal Offense, Even Minor Ones
Gail Atwater was driving her pickup truck in Lago Vista, Texas with her 3-year-old son and 5-year-old daughter in the front seat. None of them were wearing seatbelts — a misdemeanor punishable only by a fine of $25 to $50. Officer Bart Turek pulled her over, berated her in front of her children, handcuffed her, placed her in his squad car, and took her to the police station where she was booked, had her mugshot taken, and was placed in a jail cell. She was released on $310 bond. Atwater sued, arguing the arrest for a fine-only offense was an unreasonable seizure.
In a 5-4 decision, the Supreme Court ruled that the Fourth Amendment does NOT prohibit a warrantless arrest for a criminal offense committed in an officer's presence, even if the offense is minor and punishable only by a fine. The Court acknowledged the arrest was "surely humiliating" but held that the constitutional standard does not require officers to exercise discretion based on the severity of the offense. Justice O'Connor dissented, calling the rule "irreconcilable with the Fourth Amendment."
This is a dangerous precedent. It means you can legally be arrested, handcuffed, booked, and jailed for any criminal offense — even jaywalking, littering, or not wearing a seatbelt. Combined with Whren v. United States (pretextual stops), this gives officers enormous power to arrest nearly anyone at nearly any time, since virtually everyone commits minor violations daily. This case is frequently cited in discussions of racial profiling and discriminatory enforcement.
579 U.S. 438 — DUI Testing: Breath vs. Blood
This case consolidated three separate DUI cases from North Dakota and Minnesota. Each involved drivers arrested for DUI who were told that refusing a chemical test (breath or blood) was a criminal offense under state "implied consent" laws. Danny Birchfield refused a blood test and was convicted of a refusal crime. William Bernard refused a blood test and was charged. Steve Beylund agreed to a blood test only after being told refusal was a crime. All challenged the constitutionality of criminalizing test refusals.
The Supreme Court drew a critical line: Breath tests may be administered without a warrant as a search incident to arrest because they are minimally invasive. Blood tests, however, are significantly more invasive and generally require a warrant. States may impose civil penalties (license suspension) for refusing either test but cannot impose criminal penalties for refusing a blood test without a warrant. The practical effect: officers can require a breath test during a DUI arrest, but you cannot be criminally punished for refusing a blood draw.
If you are pulled over for suspected DUI, understanding the difference between breath and blood tests is critical. You can be required to submit to a breathalyzer without a warrant, and refusing may result in license suspension. But a blood draw is more invasive — it involves piercing your skin — and requires a warrant unless you consent. You cannot be criminally charged for refusing a blood test absent a warrant. This case directly affects DUI encounters in every state with implied consent laws.
574 U.S. 54 — Officer Mistakes of Law Can Be "Reasonable"
Sergeant Matt Darisse stopped Nicholas Heien's car because one of its two brake lights was out. During the stop, Darisse became suspicious and asked for consent to search the car. Heien consented, and the search revealed cocaine. However, North Carolina law only required one working brake light — meaning the stop itself was based on a mistake of law. Heien argued the stop was unlawful because no actual traffic violation had occurred.
The Supreme Court ruled 8-1 that a traffic stop based on an officer's reasonable mistake of law can still satisfy the Fourth Amendment's requirement of reasonable suspicion. Chief Justice Roberts wrote that "reasonable suspicion" requires only a reasonable understanding of the law, not a perfect one. Justice Sotomayor dissented, warning the ruling gives officers an incentive to remain ignorant of the law: "One is left to wonder... why an officer would want to learn the law."
This is a troubling precedent. While civilians face criminal consequences for not knowing the law ("ignorance of the law is no excuse"), police officers can benefit from their own legal ignorance. An officer who incorrectly believes you are breaking the law can stop you, and any evidence found during that stop may be admissible as long as the officer's mistake was "reasonable." This makes it harder to challenge traffic stops and reinforces the importance of refusing consent to searches.
579 U.S. 232 — Outstanding Warrants Can "Cure" Unlawful Stops
Officer Douglas Fackrell was conducting surveillance on a house suspected of drug activity. He stopped Edward Strieff after Strieff left the house, without any individualized reasonable suspicion that Strieff himself was involved in criminal activity — an admittedly unlawful stop. During the stop, Fackrell discovered Strieff had an outstanding warrant for a minor traffic violation. He arrested Strieff on the warrant, searched him incident to arrest, and found methamphetamine and drug paraphernalia.
The Supreme Court ruled 5-3 that the discovery of the outstanding warrant "attenuated" (broke) the connection between the unlawful stop and the evidence. Under the attenuation doctrine, evidence found as a result of an unlawful search may still be admissible if the connection between the illegal conduct and the evidence is sufficiently weakened by intervening circumstances. The pre-existing warrant was such an intervening circumstance.
Justice Sotomayor's dissent was extraordinary — she wrote that the ruling means "the officer's unconstitutional act is sanitized" and warned it gives officers incentive to stop people without reasonable suspicion, knowing that outstanding warrants are common. She noted that in Ferguson, Missouri, 76% of residents had outstanding warrants, often for minor infractions.
This case is deeply troubling for civil liberties. It creates an incentive for police to conduct unlawful stops because if they happen to find an outstanding warrant — even for an unpaid parking ticket — the stop is effectively "laundered." In communities where outstanding warrants are common (often due to aggressive policing of minor offenses), this ruling disproportionately impacts people of color and low-income individuals. Take care of minor warrants immediately.
The constitutional amendments that protect you during police encounters — what they say and what they mean in practice.
Freedom of Speech, Press, Assembly, and Petition
"Congress shall make no law... abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble..."
What this means for you: You have the right to record police in public (Glik v. Cunniffe). You can protest peacefully. You can speak to officers (or choose not to). You can publish and share recordings of police activity. Officers cannot confiscate your phone or delete recordings as punishment for exercising these rights.
Key cases: Glik v. Cunniffe (filming police), Fordyce v. City of Seattle (recording rights), ACLU v. Alvarez (audio recording)
Protection Against Unreasonable Search and Seizure
"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause..."
What this means for you: Police need a warrant (with probable cause) to search your home, person, car (with exceptions), and phone. They cannot detain you without reasonable suspicion. They cannot arrest you without probable cause. They cannot use excessive force. Evidence from illegal searches is inadmissible (exclusionary rule).
Key cases: Terry v. Ohio, Mapp v. Ohio, Riley v. California, Rodriguez v. United States, Carpenter v. United States, Lange v. California, Birchfield v. North Dakota
Right to Remain Silent & Due Process
"No person... shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law..."
What this means for you: You have the absolute right to refuse to answer police questions. You cannot be punished for invoking silence. You must be read Miranda warnings before custodial interrogation. You must affirmatively invoke your right — say the words out loud (Berghuis v. Thompkins). Silence alone is not enough.
Key cases: Miranda v. Arizona, Berghuis v. Thompkins, Salinas v. Texas
Right to an Attorney
"In all criminal prosecutions, the accused shall enjoy the right... to have the Assistance of Counsel for his defence."
What this means for you: Once criminal proceedings begin, you have the right to an attorney — and if you cannot afford one, one will be appointed (Gideon v. Wainwright). Invoking your right to counsel during interrogation requires police to stop questioning until your attorney is present. Always request an attorney immediately upon arrest.
Key cases: Gideon v. Wainwright, Edwards v. Arizona, Massiah v. United States
Equal Protection & Due Process
"No State shall... deny to any person within its jurisdiction the equal protection of the laws."
What this means for you: Police cannot target you based on race, ethnicity, religion, or national origin. The Equal Protection Clause prohibits discriminatory enforcement — even when the underlying stop is technically legal (Whren). This amendment incorporates the Bill of Rights to apply to state and local police, not just federal agents. It is the constitutional basis for challenging racial profiling.
Key cases: Mapp v. Ohio (incorporation), Whren v. United States (profiling), Monroe v. Pape (Section 1983 liability)
Memorize these phrases. They are your most powerful legal tools during any police encounter.
These landmark cases define your constitutional rights — but knowing them is only the first step. CopDefender puts this knowledge in your pocket with real-time recording, encrypted cloud backup, and instant access to civil rights attorneys.
Comprehensive guide to your constitutional rights during every type of police encounter.
How to preserve and use police encounter recordings as admissible evidence in court.
Step-by-step guides for traffic stops, street stops, home encounters, and more.
State-by-state guide to your legal right to record police officers in public.
Real police encounters that changed laws and sparked movements for accountability.
Clear definitions of legal terms like probable cause, reasonable suspicion, and more.