Which term best describes an act of physical violence against another person?

The term that best describes an act of physical violence against another person is battery. Battery refers to the intentional and unlawful use of force against another individual, resulting in harm or the threat of harm. It encompasses actions such as hitting, kicking, or any other physical assault that causes injury or damages someone's physical integrity.

Understanding the context of the other options clarifies why they do not fit the description of physical violence. Assisting a citizen involves helping someone in need, which is a supportive action rather than a violent one. A traffic problem pertains to issues related to vehicles or road conduct, which is not directly related to violence against a person. Special detail typically refers to particular assignments or objectives created for law enforcement purposes, not an act of violence. Thus, battery is the most appropriate and specific term for the described act of physical violence.