In the United States, the Miranda warning is a type of notification customarily given by police to criminal suspects in police custody advising them of their right to silence and, in effect, protection from self-incrimination; that is, their right to refuse to answer questions or provide information to law enforcement or other officials. Named for the U.S. Supreme Court's 1966 decision Miranda v. Arizona, these rights are often referred to as Miranda rights. The purpose of such notification is to preserve the admissibility of their statements made during custodial interrogation in later criminal proceedings. The idea came from law professor Yale Kamisar, who subsequently was dubbed "the father of Miranda."
Drunk driving is the act of operating a motor vehicle with the operator's ability to do so impaired as a result of alcohol consumption, or with a blood alcohol level in excess of the legal limit. For drivers 21 years or older, driving with a blood alcohol concentration (BAC) of 0.08% or higher is illegal. For drivers under 21 years old, the legal limit is lower, with state limits ranging from 0.00 to 0.02. Lower BAC limits apply when operating boats, airplanes, or commercial vehicles. Among other names, the criminal offense of drunk driving may be called driving under the influence (DUI), driving while intoxicated or impaired (DWI), operating [a] vehicle under the influence of alcohol (OVI), or operating while impaired (OWI).
An arrest is the act of apprehending and taking a person into custody, usually because the person has been suspected of or observed committing a crime. After being taken into custody, the person can be questioned further and/or charged. An arrest is a procedure in a criminal justice system, sometimes it is also done after a court warrant for the arrest.
Driving under the influence (DUI) is the offense of driving, operating, or being in control of a vehicle while impaired by alcohol or drugs, to a level that renders the driver incapable of operating a motor vehicle safely. Multiple other terms are used for the offense in various jurisdictions.
Vehicular homicide is a crime that involves the death of a person other than the driver as a result of either criminally negligent or murderous operation of a motor vehicle.
A traffic ticket is a notice issued by a law enforcement official to a motorist or other road user, indicating that the user has violated traffic laws. Traffic tickets generally come in two forms, citing a moving violation, such as exceeding the speed limit, or a non-moving violation, such as a parking violation, with the ticket also being referred to as a parking citation, or parking ticket.
License suspension or revocation traditionally follows conviction for alcohol-impaired or drunk driving. However, under administrative license suspension (ALS) laws, sometimes called administrative license revocation or administrative per se, licenses are confiscated and automatically suspended independent of criminal proceedings whenever a driver either (1) refuses to submit to chemical testing, or (2) submits to testing with results indicating a blood alcohol content of 0.08% or higher.
A police car is a ground vehicle used by police and law enforcement for transportation during patrols and responses to calls for service. A type of emergency vehicle, police cars are used by police officers to patrol a beat, quickly reach incident scenes, and transport and temporarily detain suspects, all while establishing a police presence and providing visible crime deterrence.
Criminal jurisdiction is a term used in constitutional law and public law to describe the power of courts to hear a case brought by a state accusing a defendant of the commission of a crime. It is relevant in three distinct situations:
- to regulate the relationship between states, or between one state and another;
- where the nation is a federation, to regulate the relationship between the federal courts and the domestic courts of those states comprising the federation; and
- where a state only has, to a greater or lesser extent, a single and unified system of law, it is the law of criminal procedure to regulate what cases each classification of court within the judicial system shall adjudicate upon. People must be tried in the same state the crime is committed.
A matrix scheme is a business model involving the exchange of money for a certain product with a side bonus of being added to a waiting list for a product of greater value than the amount given. Matrix schemes are also sometimes considered similar to Ponzi or pyramid schemes. They have been called "unsustainable" by the United Kingdom's Office of Fair Trading. A matrix scheme is also an example of an 'exploding queue' in queueing theory.
School bus stop laws are laws dictating what a motorist must do in the vicinity of a bus stop being used by a school bus or other bus, coach or minibus providing school transport.
Many countries have adopted a penalty point or demerit point system under which a person’s driving license is revoked or suspended based on the number of points they’ve accumulated over a specific period of time, points are given for traffic offenses or infringements committed by them in that period. The demerit points schemes of each jurisdiction varies. These demerit schemes are usually in addition to fines or other penalties which may be imposed for a particular offence or infringement, or after a prescribed number of points have been accumulated.
Illinois v. Caballes, 543 U.S. 405 (2005), is a decision by the Supreme Court of the United States in which the Court held that the use of a drug-sniffing police dog during a routine traffic stop does not violate the Fourth Amendment to the U.S. Constitution, even if the initial infraction is unrelated to drug offenses.
Amnesty is defined as "A pardon extended by the government to a group or class of people, usually for a political offense; the act of a sovereign power officially forgiving certain classes of people who are subject to trial but have not yet been convicted." Though the term general pardon has a similar definition, an amnesty constitutes more than a pardon, in so much as it obliterates all legal remembrance of the offense. Amnesty is increasingly used to express the idea of "freedom" and to refer to when prisoners can go free.
In law, ignorantia juris non excusat, or ignorantia legis neminem excusat, is a legal principle holding that a person who is unaware of a law may not escape liability for violating that law merely by being unaware of its content.
Berkemer v. McCarty, 468 U.S. 420 (1984), is a decision of the United States Supreme Court that ruled that a person in police custody following a misdemeanor traffic offense was entitled to the protections of the Fifth Amendment pursuant to the decision in Miranda v. Arizona 384 U.S. 436 (1966). Previously, some courts had been applying Miranda only to serious offenses.
"Contempt of cop" is law enforcement jargon in the United States for behavior by people toward law enforcement officers that the officers perceive as disrespectful or insufficiently deferential to their authority. It is a play on the phrase contempt of court, and is not an actual offense. The phrase is associated with unlawful arbitrary arrest and detention of individuals, often for expressing or exercising rights guaranteed to them by the United States Constitution. Contempt of cop is often discussed in connection to police misconduct such as use of excessive force or even police brutality as a reaction to perceived disrespectful behavior rather than for any legitimate law enforcement purpose.
Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers. The signal is sometimes referred to in car manufacturers' manuals as an optical horn, since it draws the attention of other drivers.
Whren v. United States, 517 U.S. 806 (1996), was a unanimous United States Supreme Court decision that "declared that any traffic offense committed by a driver was a legitimate legal basis for a stop."
Speed limits are enforced on most public roadways by authorities, with the purpose to improve driver compliance with speed limits. Methods used include roadside speed traps set up and operated by the police and automated roadside 'speed camera' systems, which may incorporate the use of an automatic number plate recognition system. Traditionally, police officers used stopwatches to measure the time taken for a vehicle to cover a known distance. More recently, radar guns and automated in-vehicle systems have come into use.
