What does Daru observe about the Arab’s physical features and actions?

Daru is conflicted inside. He wants to be part of the Arab culture but he looks French: the culture of the Arab oppressors. The Arab is an extremely complicated and ambiguous character. He offers neither Daru nor the reader any answers. Daru has mixed emotions: he feels revolted by the prisoner's alleged crime, yet he does not want to lead him to imprisonment. Daru is fascinated by the physical attributes of the Arab that are so unlike his.Daru attempts to interpret the Arab's emotions but fails. His inability to make a clear judgment on the Arab results from a lack of knowledge, which eventually alienates him from the plateau region and leaves him in a moral no-man's land.