The police are a constituted body of persons empowered by a state with the aim of enforcing the law and protecting the public order as well as the public itself. This commonly includes ensuring the safety, health, and possessions of citizens, and to prevent crime and civil disorder. Their lawful powers encompass arrest and the use of force legitimized by the state via the monopoly on violence. The term is most commonly associated with the police forces of a sovereign state that are authorized to exercise the police power of that state within a defined legal or territorial area of responsibility. Police forces are often defined as being separate from the military and other organizations involved in the defense of the state against foreign aggressors; however, gendarmerie are military units charged with civil policing. Police forces are usually public sector services, funded through taxes.
In law enforcement, a sting operation is a deceptive operation designed to catch a person attempting to commit a crime. A typical sting will have an undercover law enforcement officer, detective, or co-operative member of the public play a role as criminal partner or potential victim and go along with a suspect's actions to gather evidence of the suspect's wrongdoing. Mass media journalists occasionally resort to sting operations to record video and broadcast to expose criminal activity.
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing. This can include observation from a distance by means of electronic equipment, such as closed-circuit television (CCTV), or interception of electronically transmitted information like Internet traffic. It can also include simple technical methods, such as human intelligence gathering and postal interception.
A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads them to arrest criminals and enable them to be convicted in court. A detective may work for the police or privately.
Criminal justice is the delivery of justice to those who have been accused of committing crimes. The criminal justice system is a series of government agencies and institutions. Goals include the rehabilitation of offenders, preventing other crimes, and moral support for victims. The primary institutions of the criminal justice system are the police, prosecution and defense lawyers, the courts and the prisons system.
A fugitive or runaway is a person who is fleeing from custody, whether it be from jail, a government arrest, government or non-government questioning, vigilante violence, or outraged private individuals. A fugitive from justice, also known as a wanted person, can be a person who is either convicted or accused of a crime and hiding from law enforcement in the state or taking refuge in a different country in order to avoid arrest.
In the United States, a special agent is an official title used to refer to certain investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigatory positions. Additionally, some special agents operate in criminal intelligence, counterterrorism, or counterintelligence-based roles as well, with one or all of these roles occasionally taking precedence over criminal investigatory tasks.
A covert operation or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal the identity of the party responsible.
The International and State Defense Police was a Portuguese security agency that existed during the Estado Novo regime of António de Oliveira Salazar. Formally, the main roles of the PIDE were the border, immigration and emigration control and internal and external state security. Over time, it came to be known for its secret police activities.
The Handschu agreement is a set of guidelines that regulate police behavior in New York City with regard to political activity.
Supergrass is a British slang term for an informant who turns King's evidence, often in return for protection and immunity from prosecution. In the British criminal world, police informants have been called "grasses" since the late 1930s, and the "super" prefix was coined by journalists in the early 1970s to describe those who witnessed against fellow criminals in a series of high-profile mass trials at the time.
The Law Enforcement Intelligence Unit (LEIU) is an organization designed to facilitate intelligence sharing between state and local law enforcement agencies. It began in 1956 with 26 members and has since expanded to include roughly 250 members, mostly in the United States but also in Canada, Australia, and South Africa. The organization is divided into four zones: Eastern, Central, Northwestern, and Southwestern. According to its website, LEIU's purpose is to "gather, record, and exchange confidential information not available through regular police channels, concerning organized crime and terrorism."
Criminal intelligence is information compiled, analyzed, and/or disseminated in an effort to anticipate, prevent, or monitor criminal activity.
Protective custody (PC) is a type of imprisonment (or care) to protect a person from harm, either from outside sources or other prisoners. Many prison administrators believe the level of violence, or the underlying threat of violence within prisons, is a chief factor causing the need for PC units. Prisoners have the opportunity to request protective custody if they get the impression that the environment they are living in is harmful to their well being. Their request may be granted if the officials rule that the prisoner is truly at risk. Protective custody might simply involve putting the person in a secure prison (if the threat is from the outside), but usually protective custody involves some degree of solitary confinement. For people who are threatened because of their association with a certain group or gang, moving them to another section of the prison may be sufficient.
Transnational organized crime (TOC) is organized crime coordinated across national borders, involving groups or markets of individuals working in more than one country to plan and execute illegal business ventures. In order to achieve their goals, these criminal groups use systematic violence and corruption. Common transnational organized crimes include conveying drugs, conveying arms, trafficking for sex, toxic waste disposal, materials theft and poaching.
Pre-crime is the idea that the occurrence of a crime can be anticipated before it happens. The term was coined by science fiction author Philip K. Dick, and is increasingly used in academic literature to describe and criticise the tendency in criminal justice systems to focus on crimes not yet committed. Precrime intervenes to punish, disrupt, incapacitate or restrict those deemed to embody future crime threats. The term precrime embodies a temporal paradox, suggesting both that a crime has not yet occurred and that it is a foregone conclusion.
The following outline is provided as an overview of and introduction to law enforcement:
Department of Justice v. Landano, 508 U.S. 165 (1993), was a case in which the Supreme Court of the United States held that the government is not entitled to a presumption that a source is confidential within the meaning of Exemption 7(D) of the Freedom of Information Act whenever the source provides information to the Federal Bureau of Investigation in the course of a criminal investigation.
A gang intelligence unit (GIU) is an American law enforcement unit tasked with investigating, suppressing, and combatting gangs within a geographical location. They exist to provide safety as well as information regarding gang activity in an area, and are also commonly found within correctional facilities. GIUs seek advanced awareness of gang activity as a method to suppress gang violence. Intelligence forms the foundation of GIUs' efforts to suppress gang violence and crime and maintain safety within the community.
Crime in Slovenia is prevented by Slovenian law enforcement agencies such as the Slovenian National Police Force.
