Answer:
Universality.
Step-by-step explanation:
The ethics of universality suggest that there is a universal ethic that is common to all the people of the universe regardless of social status, nationality, gender, race, culture, etc.
In the given case, the citizen is making an argument against the policy of universality that suggests that ethics are universal and applies to all. The citizen is making an argument that the sheriff will not agree with the plan that he and his family be suspected and treated as such.
So, the correct answer is universality.