5150 in California means someone is mentally unstable and needs to be committed. So here in Texas I laugh when a bill or anything is 5150, and have to explain why, as it is California code.
I had a police scanner when son first went on the force, 25 years ago, used to listen every night.
Forget the codes, but do remember when they were looking for a suspect it was almost always BOLO for a BMA,, a black Mae adult.
Here are the codes.
https://www.lvmpd.com/en-us/ProtectTheCity/Documents/IDF%20Code%20Card.pdf