Charges have been laid after the NRP used closed circuit cameras to investigate a stabbing in St. Catharines.
A 28-year-old woman was found with non-life threatening injuries at a home in the Niagara and North Street area this morning.
While reviewing the video footage, officers spotted two people escaping out a second story window and climbing onto the roof.
One of them eventually tried to climb back into the home and that's when they were arrested by the NRP.
A 31-year-old woman has been charged with assault with a weapon.
The second person on the roof was not arrested.

Moyer Farms Making $12M Investment
Niagara Falls Going Green for St. Patrick's Day
St. Catharines RIDE Campaign
Davies Challenges Gov't on EV Support
Welland's Plan for Hospital Contribution
New GO Station Coming to Niagara
Most Serious Collisions in Summer: Region
Coach Service Added to Airport