Each member of the Police Department shall have the powers conferred upon police officers and conservators of peace by law, and the other powers and duties as may, from time to time, be lawfully provided by the United States or state law, or by the provisions of this code. Each police officer shall be a conservator of the peace and aid in the preservation of the public peace and the observance and enforcement of the provisions of this code and the laws of the state, including specifically but not limited to ILCS Ch. 725, Act 5, §§ 107-1 and 108-1 et seq. Each officer shall have the power and authority, within the city, to serve and execute warrants and other legal processes for the apprehension and commitment of any person charged with, held for examination or for trial or taken in the act of committing a crime or misdemeanor or violating any law or provision of this code.
('74 Code, § 22-20)