This is literally just the same thing the military uses, but with descriptions changed to police. Still maybe useful, but not as useful. The utility here is the most relevant information comes first, and it keeps things organized. You can start responding before all the information is relayed. It’s important for radio communications in a battlefield setting. If you’re making a post online we’ll after anything is actionable, you can safely ignore this. Just post the information in the most informative way you can.