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).
The rule of felony murder is a legal doctrine in some common law jurisdictions that broadens the crime of murder: when someone is killed in the commission of a dangerous or enumerated crime, the offender, and also the offender's accomplices or co-conspirators, may be found guilty of murder.
In criminal law, criminal negligence is an offence that involves a breach of an objective standard of behaviour expected of a defendant. It may be contrasted with strictly liable offences, which do not consider states of mind in determining criminal liability, or offenses that requires mens rea, a mental state of guilt.
Road rage is aggressive or angry behavior exhibited by motorists. These behaviors include rude and verbal insults, yelling, physical threats or dangerous driving methods targeted at other drivers, pedestrians or cyclists in an effort to intimidate or release frustration. Road rage can lead to altercations, damage to property, assaults, and collisions that result in serious physical injuries or even death. Strategies include cutting motorists off, inappropriate honking, using obscene gestures, flipping off another driver, swerving, tailgating, brake checking, and attempting to fight.
Culpable homicide is a categorisation of certain offences in various jurisdictions within the Commonwealth of Nations which involves the homicide either with or without an intention to kill depending upon how a particular jurisdiction has defined the offence. Unusually for those legal systems which have originated or been influenced during rule by the United Kingdom, the name of the offence associates with Scots law rather than English law.
Public intoxication, also known as "drunk and disorderly" and "drunk in public", is a summary offense in some countries rated to public cases or displays of drunkenness. Public intoxication laws vary widely by jurisdiction, but usually require an obvious display of intoxicated incompetence or behavior which disrupts public order before the charge is levied.
Negligent homicide is a criminal charge brought against a person who, through criminal negligence, allows another person to die. Other times, an intentional killing may be negotiated down to this lesser charge as a compromised resolution of a murder case, as might occur in the context of the intentional shooting of an unarmed man after a traffic altercation. Negligent homicide can be distinguished from involuntary manslaughter by its mens rea requirement: negligent homicide requires criminal negligence, while manslaughter requires recklessness.
Causing death by dangerous driving is a statutory offence in England and Wales, Scotland and Northern Ireland, as well as Hong Kong. It is an aggravated form of dangerous driving. In the UK, it was created by section 1 of the Road Traffic Act 1988, and in Hong Kong it was created by section 36 of the Road Traffic Ordinance.
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.
In the English law of homicide, manslaughter is a less serious offence than murder, the differential being between levels of fault based on the mens rea or by reason of a partial defence. In England and Wales, a common practice is to prefer a charge of murder, with the judge or defence able to introduce manslaughter as an option. The jury then decides whether the defendant is guilty or not guilty of either murder or manslaughter. On conviction for manslaughter, sentencing is at the judge's discretion, whereas a sentence of life imprisonment is mandatory on conviction for murder. Manslaughter may be either voluntary or involuntary, depending on whether the accused has the required mens rea for murder.
In United States law, reckless driving is a major moving violation related to aggressive driving that generally consists of driving a vehicle with willful or wanton disregard for the safety of persons or property. It is usually a more serious offense than careless driving, improper driving, or driving without due care and attention, and is often punishable by fines, imprisonment, or the suspension or revocation of one's driver's license. In Commonwealth countries, the offense of dangerous driving applies.
Most jurisdictions in the United States of America maintain the felony murder rule. In essence, the felony murder rule states that when an offender kills in the commission of a dangerous or enumerated crime, the offender, and also the offender's accomplices or co-conspirators, may be found guilty of murder. It means that the common law malice required for murder is "implied as a matter of law for homicides arising from felonies." It is a widely criticized feature of American criminal law. Initially, it was widely believed by scholars that the felony murder rule had originated in England. However, more recent scholarship has argued that it likely originated in America separately from England. Its historic roots have been called "deep but terribly obscure".
Manslaughter is a common law legal term for homicide considered by law as less culpable than murder. The distinction between murder and manslaughter is sometimes said to have first been made by the ancient Athenian lawmaker Draco in the 7th century BC.
In United Kingdom law, dangerous driving is a statutory offence related to aggressive driving. It is also a term of art used in the definition of the offence of causing death by dangerous driving. It replaces the former offence of reckless driving. Canada's Criminal Code has equivalent provisions covering dangerous driving.
The laws of driving under the influence vary between countries. One difference is the acceptable limit of blood alcohol content before a person is charged with a crime. Thresholds range from the limit of detection (zero-tolerance) to 0.08%. Some countries have no limits or laws on blood alcohol content.
In Canada, homicide is the act of causing death to another person through any means, directly or indirectly. Homicide can either be culpable or non-culpable, with the former being unlawful under a category of offences defined in the Criminal Code, a statute passed by the Parliament of Canada that applies uniformly across the country. Murder is the most serious category of culpable homicide, the others being manslaughter and infanticide.
In the United States, the law for murder varies by jurisdiction. In many US jurisdictions there is a hierarchy of acts, known collectively as homicide, of which first-degree murder and felony murder are the most serious, followed by second-degree murder and, in a few states, third-degree murder, which in other states is divided into voluntary manslaughter, and involuntary manslaughter such as reckless homicide and negligent homicide, which are the least serious, and ending finally in justifiable homicide, which is not a crime. However, because there are at least 52 relevant jurisdictions, each with its own criminal code, this is a considerable simplification.
In traffic laws, a hit and run or a hit-and-run is the criminal act of causing a traffic collision and not stopping afterwards. It is considered a supplemental crime in most jurisdictions.
Manslaughter is a crime in the United States. Definitions can vary among jurisdictions, but manslaughter is invariably the act of causing the death of another person in a manner less culpable than murder. Three types of unlawful killings constitute manslaughter. First, there is voluntary manslaughter which is an intentional homicide committed in "sudden heat of passion" as the result of adequate provocation. Second, there is the form of involuntary manslaughter which is an unintentional homicide that was committed in a criminally negligent manner. Finally, there is the form of involuntary manslaughter which is an unintentional homicide that occurred during the commission or attempted commission of an unlawful act which does not amount to a felony.
