Law School

Fair use in particular areas. Computer code. The Oracle America, Inc. v Google, Inc. case revolves around the use of application programming interfaces (APIs) used to define functionality of the Java programming language, created by Sun Microsystems and now owned by Oracle Corporation. Google used the APIs' definition and their structure, sequence and organization (SSO) in creating the Android ope...

The tort of negligent infliction of emotional distress (NIED) is a controversial cause of action, which is available in nearly all U.S. states but is severely constrained and limited in the majority of them. The underlying concept is that one has a legal duty to use reasonable care to avoid causing emotional distress to another individual. If one fails in this duty and unreasonably causes emotiona...

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. The definition of manslaughter differs among legal jurisdictions. Voluntary manslaughter. In voluntary manslaughter, the offender had intent to kil...

An implied-in-fact contract is a form of an implied contract formed by non-verbal conduct, rather than by explicit words. The United States Supreme Court has defined it as "an agreement 'implied in fact” as "founded upon a meeting of minds, which, although not embodied in an express contract, is inferred, as a fact, from conduct of the parties showing, in the light of the surrounding circumstances...

Adverse possession, sometimes colloquially described as "squatter's rights", is a legal principle under which a person who does not have legal title to a piece of property — usually land (real property) — acquires legal ownership based on continuous possession or occupation of the property without the permission of its legal owner. In general, a property owner has the right to recover possession o...

Fair use is a doctrine in the law of the United States that permits limited use of copyrighted material without having to first acquire permission from the copyright holder. Fair use is one of the limitations to copyright intended to balance the interests of copyright holders with the public interest in the wider distribution and use of creative works by allowing as a defense to copyright infringe...

Regulations by country. In some countries, there exists a legal requirement for citizens to assist people in distress, unless doing so would put themselves or others in harm's way. Citizens are often required to, at minimum, call the local emergency number, unless doing so would be harmful, in which case the authorities should be contacted when the harmful situation has been removed. As of 2012, t...

A duty to rescue is a concept in tort law that arises in a number of cases, describing a circumstance in which a party can be held liable for failing to come to the rescue of another party who could face potential injury or death without being rescued. In common law systems, it is rarely formalized in statutes which would bring the penalty of law down upon those who fail to rescue. This does not n...

In the USA, the rescue doctrine of the law of torts holds that if a tortfeasor creates a circumstance that places the tort victim in danger, the tortfeasor is liable not only for the harm caused to the victim, but also the harm caused to any person injured in an effort to rescue that victim. This doctrine was originally promulgated by Benjamin N. Cardozo in the 1921 case, Wagner v Int'l Ry. Co. Th...

A hot prowl burglary, cat burglary, or home invasion is a sub-type of burglary (or in some jurisdictions, a separately defined crime) in which an offender unlawfully breaks and enters into a building or residence while the occupants are inside. The overarching intent of a hot prowl burglary can be theft, robbery, assault, sexual assault, murder, kidnapping, or another crime, either by stealth or d...

Homicide is the act of one human killing another. A homicide requires only a volitional act by another person that results in death, and thus a homicide may result from accidental, reckless, or negligent acts even if there is no intent to cause harm. Homicides can be divided into many overlapping legal categories, including murder, manslaughter, justifiable homicide, killing in war (either followi...

A firm offer is an offer that will remain open for a certain period or until a certain time or occurrence of a certain event, during which it is incapable of being revoked. As a general rule, all offers are revocable at any time prior to acceptance, even those offers that purport to be irrevocable on their face. In the United States, an exception is the merchant firm offer rule set out in Uniform...

Consideration is a concept of English common law and is a necessity for simple contracts but not for special contracts (contracts by deed). The concept has been adopted by other common law jurisdictions. The court in Currie v Misa  declared consideration to be a “Right, Interest, Profit, Benefit, or Forbearance, Detriment, Loss, Responsibility”. Thus, consideration is a promise of something o...

Personal property is property that is movable. In common law systems, personal property may also be called chattels or personalty. In civil law systems, personal property is often called movable property or movables – any property that can be moved from one location to another. Personal property can be understood in comparison to real estate, immovable property or real property (such as land and b...

Usage. A trademark identifies the brand owner of a particular product or service. Trademarks can be used by others under licensing agreements; for example, Bullyland obtained a license to produce Smurf figurines; the Lego Group purchased a license from Lucasfilm in order to be allowed to launch Lego Star Wars; TT Toys Toys is a manufacturer of licensed ride-on replica cars for children. The unauth...

A trademark is a type of intellectual property consisting of a recognizable sign, design, or expression which identifies products or services of a particular source from those of others, although trademarks used to identify services are usually called service marks. The trademark owner can be an individual, business organization, or any legal entity. A trademark may be located on a package, a labe...

Res ipsa loquitur (Latin: "the thing speaks for itself") is a doctrine in the Anglo-American common law that says in a tort lawsuit a court can infer negligence from the very nature of an accident or injury in the absence of direct evidence on how any defendant behaved. Although modern formulations differ by jurisdiction, common law originally stated that the accident must satisfy the necessary el...

Harassment covers a wide range of behaviors of an offensive nature. It is commonly understood as behavior that demeans, humiliates, or embarrasses a person, and it is characteristically identified by its unlikelihood in terms of social and moral reasonableness. In the legal sense, these are behaviors that appear to be disturbing, upsetting, or threatening. They evolve from discriminatory grounds,...

False imprisonment occurs when a person intentionally restricts another person’s movement within any area without legal authority, justification, or the restrained person's permission. Actual physical restraint is not necessary for false imprisonment to occur. A false imprisonment claim may be made based upon private acts, or upon wrongful governmental detention. For detention by the police, proof...

The posting rule (or mailbox rule in the United States, also known as the "postal rule" or "deposited acceptance rule") is an exception to the general rule of contract law in common law countries that acceptance of an offer takes place when communicated. Under the posting rule, that acceptance takes effect when a letter is posted (that is, dropped in a post box or handed to a postal worker). In pl...

In English common law, real property, real estate, realty, or immovable property is land which is the property of some person and all structures (also called improvements or fixtures) integrated with or affixed to the land, including crops, buildings, machinery, wells, dams, ponds, mines, canals, and roads, among other things. The term is historic, arising from the now-discontinued form of action,...

Trade secrets are a type of intellectual property that comprise formulas, practices, processes, designs, instruments, patterns, or compilations of information that have inherent economic value because they are not generally known or readily ascertainable by others, and which the owner takes reasonable measures to keep secret. In some jurisdictions, such secrets are referred to as confidential info...

In law, a proximate cause is an event sufficiently related to an injury that the courts deem the event to be the cause of that injury. There are two types of causation in the law: cause-in-fact, and proximate (or legal) cause. Cause-in-fact is determined by the "but for" test: But for the action, the result would not have happened. (For example, but for running the red light, the collision would n...

Overview. As of 2017, at least 130 UNESCO member states retained criminal defamation laws. In 2017, the Organization for Security and Cooperation in Europe (OSCE) Office of the Representative on Freedom of the Media issued a report on criminal defamation and anti-blasphemy laws among its member states, which found that defamation is criminalized in nearly three-quarters (42) of the 57 OSCE partici...

Defamation (sometimes known as calumny, vilification, libel, slander or traducement) is the oral or written communication of a false statement about another that unjustly harms their reputation and usually constitutes a tort or crime. In several countries, including South Korea, a true statement can also be considered defamation. Under common law, to constitute defamation, a claim must generally b...