Law enforcement agency

A law enforcement agency (LEA) is any government agency responsible for law enforcement within a specific jurisdiction through the employment and deployment of law enforcement officers and their resources. The most common type of law enforcement agency is the police, but various other forms exist as well, including agencies that focus on specific legal violations or are organized and overseen by certain authorities. They typically have various powers and legal rights to allow them to perform their duties, such as the power of arrest and the use of force.

Jurisdiction

LEAs that have their power restricted in some way are said to operate within a jurisdiction. Jurisdictions are traditionally restricted to a geographic area and territory. An LEA might be able to apply its powers within a state (e.g., the National Police for the entirety of France), within an administrative division (e.g., the Ontario Provincial Police for Ontario, Canada), within a division of an administrative division (e.g., the Miami-Dade Police Department for Miami-Dade County, Florida, United States), or across a collection of states typically within an international organization or political union (e.g., Europol for the European Union).

Sometimes, the jurisdiction of an LEA is determined by the type of violation committed, the specific laws the agency enforces, the affected parties, or the severity of the offense. For example, in the United States, the Postal Inspection Service primarily investigates crimes affecting or misusing the services of the United States Postal Service, such as mail and wire fraud. If a Postal Inspection Service investigation uncovered tobacco smuggling, the Bureau of Alcohol, Tobacco, Firearms and Explosives would be involved, but the Drug Enforcement Administration would not, as even though they investigate drug smuggling, their jurisdiction does not cover specifically tobacco smuggling. In other cases, an LEA's involvement is determined by whether their involvement is requested.