Which code is used to indicate "Fire alarm"?

The code used to indicate "Fire alarm" is specifically 10-71. This code is designed to provide a clear and concise communication method among law enforcement and emergency personnel when they need to report or respond to a fire-related issue. Utilizing standardized codes like 10-71 helps streamline communication in potentially urgent situations, ensuring efficient and swift action can be taken.

In the context of the other options, 10-79 refers to a request for assistance, 10-78 is used for a request for fire or emergency assistance, and 10-69 indicates information. While related to emergency situations, these codes do not specify a fire alarm as distinctly as 10-71 does. By using 10-71, responders immediately understand that there is a need to address a fire alarm, minimizing confusion and promoting rapid response.