With temperatures approaching triple digits Boulder authorities want to make sure people don't leave their pets in cars, risking their deaths.
Police have begun ticketing cars they found with animals left alone inside.
Last month, 54 incidents were reported and one dog died.
On Saturday they responded to three calls, including a car whose temperature gauge indicated it was 109 degrees inside.
Janee Teague, supervisor of Boulder Animal Care and Control, says if you must leave your pets in the car, crack the windows, give them water, park in the shade and leave for no more than five minutes.
Car owners also risk officers forcing open a vehicle if necessary to save an animal.