The+animals+reassured+him+on+this+point+immediately,+and+no+more+was+said+about+the+pigs+sleeping+in+the+farmhouse+beds

The governmental power is forcing the citizens to follow their rules. It is before the citizens started to rebel and questioned about their unfair power.

The citizens (animals) are beginning to "fear" their ruler. Just like Stalin had done, the Napoleonist government is generating a sense of fear and terror in the animals' minds by publicly showing violence towards supposed traitors.