Law enforcement

maintenance of public order by implementing laws, administration of the laws of the land

Police are agents or agencies empowered to enforce the law and to effect public and social order through the legitimate use of force. The term is most commonly associated with police departments of a state that are authorized to exercise the police power of that state within a defined legal or territorial area of responsibility. The word comes via French from the Latin politia (“civil administration”), which itself derives from the Ancient Greek πόλις, for polis ("city").
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Noun
1. insuring obedience to the laws
(hypernym) enforcement
(hyponym) vigilantism
(classification) law, jurisprudence

Ensuring that people within a given jurisdiction adhere to the laws of that jurisdiction. Activities at EU level are concerned with linking and coordinating the national agencies responsible for law enforcement. (See Customs, Police, External dimension)