Police Codes

Anyone overhearing the report of a 211 in progress over a Police radio in California might not realize what crime is actually being committed. This is where knowledge of Police code comes in, as such an individual would be able to discern that it is a robbery. Of course, there are quite a few codes out there, and they can change from state to state, leading to the various ranks being required to explain how knowledgeable in code one might be.