The Serious Incident Response Team is the civilian oversight agency in Nova Scotia, Canada responsible for the investigation of incidents resulted in serious injury or death to any person, sexual assault and domestic violence allegations and other significant public interest matters concerning the police.

During his absence, a specially-trained Crown Counsel is appointed as the Acting Director to decide whether charges are laid.

The Province of Prince Edward Island refers matter that would fall under SiRT mandate in Nova Scotia to the Director for investigation.

Further, the SiRT has the mandate to investigate sexual assault and domestic violence committed by any police officers in Nova Scotia.

[5] SiRT accepts complaint from the general public, provided the incident took place after the operational date of the agency (April 20, 2012).