The police are protagonists in Rabbids Invasion.
The police first appear in Rabbid Mollusk. Where they chase Jimmy Dynamite. At the end of the episode they capture him.
They do not appear actually in Rabbid, Are You There? but it can be suspected that they arrested Pepé after he was defeated.
A deputy named Garrett is a recuring character in the show. He appears as the main antagonist of the episode Rabbid Radar. But is then later a protagonist.
In Rabbid Elevation they make a brief appearence when they capture Jimmy again.
The police are also nice to the Rabbids. As one officer nicely gave Professor Barranco 3 the mask that Pepé wore during the robbery (in which they captured him yet again) in Super Rabbid.