Merry Christmas, Waldo Police Woman : Season 4 Episode 7

In this remake of a "Police Story" episode from that show's first season (but with a different outcome), an old pensioner celebrates the Christmas season by robbing banks through trickery, usually donning a Santa suit and passing a note claiming he has an armed partner (or, in one case, getting a sidewalk Santa to stand by while he robs the bank in civilian clothes). The old man lives very quietly, except that he's a forceful advocate for the elderly. Pepper and Crowley begin to suspect that he's not pulling the robberies for himself, but to benefit other old people.