Section 654. Deputizing local police officers or peace officers

The sheriff
  may  in his discretion deputize the police officers or peace officers of
  cities, towns, villages and special districts and  agents  of  societies
  incorporated  for  the  purpose of prevention of cruelty to animals, for
  the purpose of authorizing an  arrest  without  a  warrant  outside  the
  territorial limits of such city, town, village or special district, when
  such crime or infraction was committed within such territorial limits in
  the  presence  of  such  officer.  Such  officer  shall not be deemed an
  officer, agent, servant or employee of the county.