They say that the same man is behind three separate robberies, over the past year.
The first robbery took place in May of 2013 and the last was on April 18.
All three robberies occurred at banks on 38th Avenue.
He is described as being in his fifties or sixties, six foot, two hundred and ten pounds, with grey hair.
Police consider him armed and dangerous.
Anyone with information should call Crime Stoppers at 720-913-STOP.
