According to Newsday, the staffing levels were worked out between police unions and County Executive Edward Mangano.
The agreement was reached in response to concerns regarding Mangano's plan to reduce Nassau's eight precincts to four, with the remainder becoming community policing centers.
The centers would not process arrests.
Mangano says the plan would save the county $20 million annually.
First Deputy Police Commissioner Thomas Krumpter said as many as 10 officers could be assigned to each center, along with ambulance and emergency medical technicians.
Currently, about 50 officers work in precincts but many are on patrol during their shifts.
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