Woman experienced fractured elbow during arrest in St. Catharines.
The SIU isn't laying any charges against an NRP officer after a woman was injured during the course of her arrest.
In February, police were called to a detoxification centre in St. Catharines in response to a trespassing call.
Officials say a woman was arrested and escorted outside where she was released.
However, she re-entered the property, and suffered a fractured elbow after being tripped by an officer.
SIU Director Joseph Martino says there is no basis for criminal charges in this case.
Police Looking for Fraud Suspect
Suspect Charged with Murder
Pedestrian Hit on Drummond Road
Late Chair Restored Council's Image: Rigby
Water Safety Should be Taught in School: Region
OHIP Should Cover Prostate Screening: MPP
MPP Wants Greater Remembrance Day Observance
Picture Released of Shooting Suspects