When talkies happened, there was a mad rush to make films of mysteries because they were enormously popular in the pulp trade. Series of published stories became movie serials as if by accident and it took nearly a whole decade for the movie industry to figure out a basic cinematic vocabulary apart from books.
So when you see something that worked during that transition, its worth figuring why. Almost always it was not because of anything in the film itself, rather the stage presence and usually humor of one or two characters.
This formula started in 1932 as one of the early talkies. It depended on the character of the nosey biddy and whatever humor could be milked from it. A cartoon cop was the foil, and a pretty effective one too.
In this, the second, his cartoonishness becomes self-referential. There are at least three major jokes in the thing where he talks about what he would do if he were a movie detective. One time, the schoolmarm treats him like he is irrelevant and he says: "What am I here, the costume designer?"
This was the same year that "The Thin Man" hit on a better, more dialog-driven comic formula that would lead to screwball. So this series flagged a bit, dragging on with different twists.
Ted's Evaluation -- 2 of 3: Has some interesting elements.