Why don't the dogs drag Boxer out to confess?

In George Orwell's "Animal Farm," the dogs don't drag Boxer out to confess because they are loyal to Napoleon and his regime, which seeks to eliminate any dissent. They serve to maintain control and instill fear among the animals, ensuring that no one questions the authority of the pigs. Additionally, Boxer's dedication and hard work make him a valued asset to the farm, and his removal would be counterproductive to the pigs' interests. Ultimately, the dogs are more focused on enforcing Napoleon's rule than on exposing truths.