Mystery series set in Colorado

Im finishing up a series set in Colorado written by Margaret Mizushima.
The main character is Maddie Cobb, a female officer whose specialty is working with her canine partner, Robo.
Maddie had a rough childhood, the details of which have a major influence on the overall story.
Theres murder, kidnapping and mayhem and great heroism throughout the series-
(I enjoyed listening to the series on CD.)