The Peelian principles of policing include: the duty to prevent crime, keep the peace and uphold the law, with the consent of the public, and with minimal use of force and restraint; to act impartially; and not to usurp the powers of the judiciary.[6] The latter standard requires a presumption of innocence. Candidates for police recruitment and promotion are appointed on merit, whereas a 'global policeman' is self-appointed faute de mieux.