The simultaneous expectation by white officers that african american officers will give members of their own race better treatment and hostility from members of the african american community who consider black officers to be traitors to their race is known as

double marginality

Explanation:

Double marginality in the context of the United States refers to the situation of minority officers ( African American or Hispanic ) that are seemed from the eyes of suspicion from both sides. The members from the minority community and their white colleagues both look them suspiciously. The white colleagues believed that these minority officers would favor their race and give better treatment to the minority group they belong, at the same time their minority groups labeled them as traitors to their ethnicity and race.