What piece of information is helpful for telecommunicators when gathering details about a suspicious person?

The description of the person's clothing and behavior is the most helpful piece of information for telecommunicators when gathering details about a suspicious person. This information allows the responding officers to identify and locate the individual more effectively. Specific details about what the person is wearing—such as colors, type of clothing, accessories, or any distinctive features—can aid law enforcement in recognizing the individual quickly.

Behavioral cues are equally important as they provide context about the individual's actions, which could indicate suspicious activity. For example, erratic movements or attempts to conceal oneself may signal a potential threat or criminal activity. This combination of clothing and behavioral descriptions helps in making informed decisions and responding appropriately to the situation at hand.

In contrast, while personal background information about the caller might add some context, it does not directly assist in identifying or understanding the suspicious person in question. The exact location of the nearest police station is irrelevant to the immediate situation involving the suspicious individual. Past incidents involving the individual could also be pertinent, but generally, they would not be as immediately helpful as a detailed description, which is crucial for an immediate response.