The NRP stopped about 600 vehicles during R.I.D.E. programs in St. Catharines and Port Colborne.
Officers administered 26 roadside screening tests on Monday and four drivers found themselves in the warning range.
They each face a three-day licence suspension.
The officers also issued tickets for traffic related offences.
Suspect Sought After Cannabis Store Robbery
Update: Police release picture of suspect
Niagara Transit to Receive Gas Tax Money
This is from the Ontario government's plan to help 102 municipalities improve local transit
Local Power Company Upgrading Technology
Canadian Niagara Power wants to be ready should another storm such as in 2022 happen again
Police Called Concerning Armed Individual
Arrest made after police arrived in St. Catharines neighbourhood this afternoon
Man Arrested in Connection to School Threats
Police say Delhi high school in Norfolk County was targeted, 18-year old arrested in Welland
110kms to be Permanent on Certain Highways
This includes a section of Highway 406, from Thorold to Welland, starting July 12th
Mayor Looking at 'Silly Ways' to Control Speed
Bill Steele says electronic road signs show a face with a frown for speeders
No Injuries After Shots Fired at House
Police looking for red SUV after a home in Niagara Falls was shot at early Sunday, they believe this was a targeted shooting