84.710.  Police force — officers of state — powers to arrest. — 1.  The members of the police force appointed in pursuance hereof are hereby declared to be officers of the state of Missouri and of the city for which such commissioners are appointed.

  2.  They shall have power within the city or on public property of the city beyond the corporate limits thereof to arrest, on view, any person they see violating or whom they have reason to suspect of having violated any law of the state or ordinance of the city.  They shall have power to arrest and hold, without warrant, for a period of time not exceeding twenty-four hours, persons found within the city or on public property of the city beyond the corporate limits thereof charged with having committed felonies in other states, and who are reported to be fugitives from justice.  They shall also have the power to stop any person abroad whenever there is reasonable ground to suspect that he is committing, has committed or is about to commit a crime and demand of him his name, address, business abroad and whither he is going.  When stopping or detaining a suspect, they may search him for a dangerous weapon whenever they have reasonable ground to believe they are in danger from the possession of such dangerous weapon by the suspect.  No unreasonable force shall be used in detaining or arresting any person, but such force as may be necessary may be used when there is no other apparent means of making an arrest or preventing an escape and only after the peace officer has made every reasonable effort to advise the person that he is the peace officer engaged in making arrest.

  3. Any person who has been arrested without a warrant may be released, without being taken before a judge, by the officer in charge of the police station whenever the officer is satisfied that there is no ground for making complaint against him, or when the person was arrested for a misdemeanor and will sign a satisfactory agreement to appear in court at the time designated.