The Calgary Police Service is testing snow tires on 50 of its cruisers.
Most of the cars are based out of District 8 in the southeast.
There are 375 police cars in Calgary that currently use a North American standard speed rated all-season tire.
A few other police forces in Canada switch to snow tires in the winter.
Around 90 per cent of southern Alberta RCMP cruisers have winter tires.
That's because those vehicles regularly travel into areas where roads aren't plowed.
Officials with the Calgary Police Service say this is a perfect winter to test the tires, but Fleet Services Coordinator Don Perlin says there's more to look at than the performance of the tire.
"Right now we have in the police rated pursuit tire, we only have four choices, so again, it's understanding what a snow tire does, how it can benefit us, working out the logistics of the storage, the manpower, all these issues, and then applying that to the four choices, and putting a tender out."
The test project runs through to the end of March.