Who is The Chief from The Case of Comrade Tulayev and what is their importance?

The Chief represents Stalin. He is the leader of the U.S.S.R., a tall, gaunt man with a bushy moustache and russet eyes. His portrait is shown all over the country, but he is seldom spotted in person. He smokes a short pipe and typically dresses in a coarse tunic without any identifying emblems. His face is very tense. The Chief admits to his close friends that he knows that officials constantly lie to him. He feels as though he stands on top of an edifice of lies.