They found $22,000 worth of fentanyl, $7,000 worth of cocaine and $670 cash.
The NRP searched a home and a car in St. Catharines on Tuesday, in the Niagara Street and Church Street area.
Officers were responding to a report of two men with guns, but they did not find any firearms on scene.
Three people have been arrested and charged; a 30-year-old St. Catharines woman, a 23-year-old Hamilton man and a 17-year-old boy from Hamilton.
Over $40,000 Raised for Day of Giving
Turkstra and Credit Union big contributors, but also individuals raised over $14,000 to help people who have nothing after floods
Police Concerned After Man Released
London police say Connor Bennett is now in Thorold
Body Found During Home Demolition
Police believe Brenda LeBlanc was murdered
2 Men Wanted After Lincoln Break In
Police say this happened on Cherrywood Drive
Boy Severely Hurt in Lundy's Collision
Hamilton police helped the NRP arrest a driver for impaired driving
Fed/Prov Volunteers Help Cleanup
City of St. Catharines says Team Rubicon volunteers are assessing damage
Police Investigating Fatal Wainfleet Crash
They say a motorcycle driver lost control on Golf Course Road in Wainfleet
Man Arrested in Relation to Child Porn
Police say Port Colborne man didn't comply with release order, he's been active in online tutor program