In North American English, a law enforcement agency (LEA) is an organization responsible for law enforcement .
Outside North America, such organisations are called police services. In North America, some of these services are called police while others have other names (e.g. sheriff's department; investigative police services in the USA are often called bureaus (e.g. FBI, USMS, ICE, CBP, ATF, DEA, USSS etc.)).
LEAs will have some form of geographic restriction on their ability to apply their powers. The LEA might be able to apply its powers within a country, for example the United States of America's Bureau of Alcohol, Tobacco, Firearms and Explosives, within a division of a country, for example the Australian state Queensland Police, or across a collection of countries, for example international organizations such as Interpol, or the European Union's Europol.
LEAs which operate across a collection of countries tend to assist in law enforcement activities, rather than directly enforcing laws, by facilitating the sharing of information necessary for law enforcement between LEAs within those countries, for example Europol has no executive powers.
Sometimes a LEA's jurisdiction is determined by the complexity or seriousness of the non compliance with a law. Some countries determine the jurisdiction in these circumstances by means of policy and resource allocation between agencies, for example in Australia, the Australian Federal Police take on complex serious matters referred to it by an agency and the agency will undertake its own investigations of less serious or complex matters by consensus, while other countries have laws which decide the jurisdiction, for example in the United States of America some matters are required by law to be referred to other agencies if they are of a certain level of seriousness or complexity, for example cross state boundary kidnapping in the United States is escalated to the Federal Bureau of Investigation. Differentiation of jurisdiction based on the seriousness and complexity of the non compliance either by law or by policy and consensus can coexist in countries.
A LEA which has a wide range of powers but whose ability is restricted geographically, typically to an area which is only part of a country, is typically referred to as local police or territorial police. Other LEAs have a jurisdiction defined by the type of laws they enforce or assist in enforcing. For example, Interpol does not work with political, military, religious, or racial matters.
Jurisdictionally, there can be an important difference between international LEAs and multinational LEAs, even though both are often referred to as "international", even in official documents. An international law enforcement agency has jurisdiction and or operates in multiple countries and across State borders, for example Interpol.
A multinational law enforcement agency will typically operate in only one country, or one division of a country, but is made up of personnel from several countries, for example the European Union Police Mission in Bosnia and Herzegovina. International LEAs are typically also multinational, for example Interpol, but multinational LEAs are not typically ...