What is the Police? This we can best answer by a deduction of the conception of the police power of the state. The state, as such, has entered into a common compact with its citizens by which each party assumes certain duties and receives certain rights. We have shown the means of connection between the state and the citizens in all cases in which the citizen can and undoubtedly will prefer complaint. He who violates a police law must suffer all the disagreeable consequences which may result to him, and is, moreover, liable to a fine. The chief principle of a well-regulated police is this: That each citizen shall be at all times and places, when it may be necessary, recognised as this or that particular person. No one must remain unknown to the police.
The Science of Rights 1796 by, Johann Gottlieb Fichte, 1762-1814; Kroeger, Adolph Ernest, 1837-1882, tr Publication date 1889 P. 374, 378