Which code indicates a crime in progress?

• A. 10-33
• B. 10-31
• C. 10-1
• D. 10-2

Answer: (B)

In police radio language, signals are used to convey urgent situations quickly. The most critical scenario here is when a crime is happening right now. The code that communicates “crime in progress” tells all units to respond immediately with high priority, bring backup if needed, and prepare for an active scene. That direct indication of ongoing criminal activity makes this code the best fit for the question.

The other codes describe things like general emergency traffic, or transmission conditions such as a poor signal or not being able to copy. Those don’t specifically convey that a crime is actively occurring, so they don’t match the situation described.