Though there are many "white shirts" in the novel, this particular white-shirt-wearer is the Škoda-driving man who wants to place Rune in assisted living. He refuses to follow the rules of Ove's neighborhood and drives his car through the residential area, leaving cigarette butts when he does. He has a great deal of power and he knows it, and he tries to use it for his own gain, but he backs down when the neighborhood bands together with Lena to uncover evidence that he had been breaking rules that could lead to a public investigation if exposed.