The Police Department functions shall be as follows: The protection of life and property. The preservation of peace and order. The prevention of crime. The arrest of all violators of the law. The enforcement of this Code and all other laws and ordinances. The prompt service of all summonses and court papers as required by law. In carrying out such functions all members and employees of the Police Department shall coordinate their efforts in such manner as will tend to establish, maintain and promote the highest standards of efficiency.