An arrest is the act of depriving a person of their liberty usually in relation to the purported investigation or prevention of crime and presenting (the arrestee) to a procedure as part of the criminal justice system. The term is Anglo-Norman in origin and is related to the French word arrêt, meaning "stop".Arrest, when used in its ordinary and natural sense, means the apprehension of a person or the deprivation of a person's liberty. The question whether the person is under arrest or not depends not on the legality of the arrest, but on whether the person has been deprived of personal liberty of movement. When used in the legal sense in the procedure connected with criminal offences, an arrest consists in the taking into custody of another person under authority empowered by law, to be held or detained to answer a criminal charge or to prevent the commission of a criminal or further offence. The essential elements to constitute an arrest in the above sense are that there must be an intent to arrest under the authority, accompanied by a seizure or detention of the person in the manner known to law, which is so understood by the person arrestedPolice and various other bodies have powers of arrest. In some places, the power is more general; for example in England and Wales—with the notable exception of the Monarch, the head of state—any person can arrest "anyone whom he has reasonable grounds for suspecting to be committing, have committed or be guilty of committing an indictable offence", although certain conditions must be met before taking such action.Article 9 of the Universal Declaration of Human Rights states that, "No one shall be subjected to arbitrary arrest, detention or exile."