What does the term 10-86 indicate in radio communication?

The term 10-86 in radio communication specifically refers to a "Disturbance in progress." This terminology is part of a coded system used in various law enforcement and public safety communications to convey information succinctly and effectively. The use of 10-codes allows for quicker communication by encapsulating messages into a numerical form that is universally understood among the personnel involved.

In this context, a "Disturbance in progress" indicates that there is an active situation requiring attention or intervention, often involving a conflict or disruption that may need law enforcement response. This immediate clarity assists responders in prioritizing and managing their resources effectively.

While the other choices pertain to different scenarios, they do not accurately capture the meaning of 10-86. Emergency situations and requests for assistance imply varying levels of urgency or need, but do not convey an ongoing disturbance. A routine check, on the other hand, signifies a standard operation rather than an active situation demanding immediate action. Thus, understanding the specific definition of 10-86 is crucial for effective communication in critical situations.