Final answer:
To locate a person accurately, the most reliable information is their first name, last name, and state.
Step-by-step explanation:
In order to locate a person accurately, the most reliable information would be first name, last name, and state. This combination provides more specific details about the person's identity and location. Including the first name and last name narrows down the search to a specific individual, while the state helps further refine the search based on their geographical location.