Murder is the unlawful killing of another human without justification or valid excuse committed with the necessary intention as defined by the law in a specific jurisdiction. This state of mind may, depending upon the jurisdiction, distinguish murder from other forms of unlawful homicide, such as manslaughter. Manslaughter is killing committed in the absence of malice, such as in the case of voluntary manslaughter brought about by reasonable provocation, or diminished capacity. Involuntary manslaughter, where it is recognized, is a killing that lacks all but the most attenuated guilty intent, recklessness.
A misdemeanor is any "lesser" criminal act in some common law legal systems. Misdemeanors are generally punished less severely than more serious felonies, but theoretically more so than administrative infractions and regulatory offences. Typically, misdemeanors are punished with prison time of no longer than one year, monetary fines, or community service.
A statute of limitations, known in civil law systems as a prescriptive period, is a law passed by a legislative body to set the maximum time after an event within which legal proceedings may be initiated. In most jurisdictions, such periods exist for both criminal law and civil law such as contract law and property law, though often under different names and with varying details.
In criminal law, mens rea is the mental state of a defendant who is accused of committing a crime. In common law jurisdictions, most crimes require proof both of mens rea and actus reus before the defendant can be found guilty.
In criminal law, actus reus, Latin for "guilty act", is one of the elements normally required to prove commission of a crime in common law jurisdictions, the other being mens rea. In the United States it is sometimes called the external element or the objective element of a crime.
An inchoate offense, preliminary crime, inchoate crime or incomplete crime is a crime of preparing for or seeking to commit another crime. The most common example of an inchoate offense is "attempt". "Inchoate offense" has been defined as the following: "Conduct deemed criminal without actual harm being done, provided that the harm that would have occurred is one the law tries to prevent."
Trespass is an area of tort law broadly divided into three groups: trespass to the person, trespass to chattels, and trespass to land.
In criminal law, diminished responsibility is a potential defense by excuse by which defendants argue that although they broke the law, they should not be held fully criminally liable for doing so, as their mental functions were "diminished" or impaired.
Oliphant v. Suquamish Indian Tribe, 435 U.S. 191 (1978), is a United States Supreme Court case deciding that Indian tribal courts have no criminal jurisdiction over non-Indians. The case was decided on March 6, 1978 with a 6–2 majority. The court opinion was written by William Rehnquist, and a dissenting opinion was written by Thurgood Marshall, who was joined by Chief Justice Warren Burger. Justice William J. Brennan did not participate in the decision.
In criminal law, a sentence is the punishment for a crime ordered by a trial court after conviction in a criminal procedure, normally at the conclusion of a trial. A sentence may consist of imprisonment, a fine, or other sanctions. Sentences for multiple crimes may be a concurrent sentence, where sentences of imprisonment are all served together at the same time, or a consecutive sentence, in which the period of imprisonment is the sum of all sentences served one after the other. Additional sentences include intermediate, which allows an inmate to be free for about 8 hours a day for work purposes; determinate, which is fixed on a number of days, months, or years; and indeterminate or bifurcated, which mandates the minimum period be served in an institutional setting such as a prison followed by street time period of parole, supervised release or probation until the total sentence is completed.
An accessory is a person who assists, but does not actually participate, in the commission of a crime. The distinction between an accessory and a principal is a question of fact and degree:
The crime against nature or unnatural act has historically been a legal term in English-speaking states identifying forms of sexual behavior not considered natural or decent and are legally punishable offenses. Sexual practices that have historically been considered to be "crimes against nature" include masturbation, sodomy and bestiality.
Complicity in criminal law refers to the participation in a completed criminal act of an accomplice, a partner in the crime who aids or encourages (abets) other perpetrators of that crime, and who shared with them an intent to act to complete the crime. A person is an accomplice of another person in the commission of a crime if they purpose the completion of a crime, and toward that end, if that person solicits or encourages the other person, or aids or attempts to aid in planning or committing the crime, or has legal duty to prevent that crime but fails to make an effort to prevent it properly.
Moral turpitude is a legal concept in the United States, and until 1976 in Canada, that refers to "an act or behavior that gravely violates the sentiment or accepted standard of the community". This term appears in U.S. immigration law beginning in the 19th century. Moral turpitude laws typically deal with legal, judicial, and business related transgressions. Moral turpitude laws should not be confused with laws regarding social morality, violations of which are more commonly called public order, morality, decency, and/or vice crimes.
In the United States, each state and territory sets the age of consent either by statute or the common law applies, and there are several federal statutes related to protecting minors from sexual predators. Depending on the jurisdiction, the legal age of consent is between 16 and 18. In some places, civil and criminal laws within the same state conflict with each other.
In the North American legal system and in US Occupational Safety and Health Administration regulations, willful violation or willful non-compliance is a violation of workplace rules and policies that occurs either deliberately or as a result of neglect.
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.
Aiding and abetting is a legal doctrine related to the guilt of someone who aids or abets another person in the commission of a crime. It exists in a number of different countries and generally allows a court to pronounce someone guilty for aiding and abetting in a crime even if he or she is not the principal offender. The words aiding, abetting and accessory are closely used but have differences. While aiding means providing support or assistance to someone, abetting means encouraging someone else to commit a crime. Accessory is someone who in fact assists "commission of a crime committed primarily by someone else". However, some jurisdictions have merged being an accessory before the fact with aiding and abetting.
The criminal law of the United States is a manifold system of laws and practices that connects crimes and consequences. In comparison, civil law addresses non-criminal disputes. The system varies considerably by jurisdiction, but conforms to the US Constitution. Generally there are two systems of criminal law to which a person maybe subject; the most frequent is state criminal law, and the other is federal law.
United States v. Antelope, 430 U.S. 641 (1977), was a United States Supreme Court case in which the Court held that American Indians convicted on reservation land were not deprived of the equal protection of the laws; (a) the federal criminal statutes are not based on impermissible racial classifications but on political membership in an Indian tribe or nation; and (b) the challenged statutes do not violate equal protection. Indians or non-Indians can be charged with first-degree murder committed in a federal enclave.
