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.

Kristen French Centre Battling Online Luring
Niagara's Crime Severity Rate Drops
Man Dies in Niagara Falls Motorcycle Crash
2nd Niagara Falls Murder Suspect Arrested
Suspect Wanted After Cables Cut
Candidates Splurge on Election Signs
Homeless, City Finances Top Candidate's Concerns
Police Investigation Resolved