This is a citizen's legal obligation to serve as a part of the body that determines the guilt or innocence of a person accused of a crime.

Jury Duty is a citizen's legal obligation to serve as a part of the body that determines the guilt or innocence of a person accused of a crime.

Explanation:

Jury Duty can be described as a responsibility of a citizen to contribute to a verdict in a case.  In criminal trials a judge alone is not held responsible for making a decision.

Instead, both the defense and the prosecutor present their arguments in front of a randomly selected jury from the public. This is done in order to ensure there is as little bias as possible.

If a citizen is called for jury duty, then it is his/her obligation to serve the court, unless there is a serious issue in case of which dates can be changed.  

answer; the civil right act of 1964;