(ALGONAC) -- The St. Clair County Sheriff's Office officially began law enforcement duties in the city of Algonac. A changeover ceremony took place Sunday at Algonac City Hall. Five full-time Algonac police officers were sworn in as Sheriff's Deputies. Four reserve officers were sworn in as special deputies. More than 100 citizens were on hand for the event, which began with an open house, followed by the swearing in ceremony, the unveiling of the Algonac substation and tours of the substation. According to Algonac City Manager Doug Alexander, the 3-year agreement will save the city $550,000. The city will have the same amount of patrol hours as before the changeover, with 24/7 coverage with one car, plus another car patrolling for 6-hours per day during peak times. Sheriff Tim Donnellon says the changeover should be the template of how county government and city government work together.