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.
NRP Want Help After Horses Hurt
It was just over a year ago a number of horses were injured at a boarding farm in Welland
Niagara Families Connected to Doctor
People waiting a long time cleared from waitlist
Teenager Hurt in St. Catharines Stabbing
Police say it is non life threatening, looking for who is responsible
One Driver Arrested of Two Hit and Runs
There were 2 separate cases in St. Catharines
Unifor and GM reach tentative contract agreement
This includes for workers in St. Catharines
Marineland ships another three belugas to San Diego
There are a few more whales left at Marineland
PM Carney says Canada will Meet U.S tariffs “Dollar for Dollar”
Province Investing in Niagara Businesses
Money to be used for Thrive Niagara, meant to increase business investment