Police say they stopped approximately 650 vehicles in Niagara Falls and St. Catharines
Eighteen drivers were required to provide a sample of their breath for analysis.
Two of the drivers registered an alert and had their licences suspended for three days.
Two other drivers were charged with operating a vehicle with a suspended licence and another driver was charged for operating a vehicle with no insurance.
Several tickets were also issued to drivers for various traffic related offences.

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