A team from BC's Independent Investigations Office is in Nanaimo, probing a case involving two people bitten by a police dog.
A release from the office says RCMP in the Vancouver Island city notified the IIO, less than an hour after the Friday night incident.
Investigators were told police spotted a man and women allegedly fleeing from a stolen vehicle at about 10:40 on April 26.
A police dog was used to round up the pair and both were bitten, requiring medical treatment.
A report to the IIO was submitted by 11:30 on Friday and a team from the office arrived in Nanaimo on Saturday morning to take over the investigation.
The Independent Investigations Office examines all matters where serious injury or death results during cases handled by any police agency in the province.