police codes

I listen to the Fulton County Public Safety P25 very often which includes a lot of departments. They use codes such as signal-34, signal-89 I know that they use codes to A. Be obscure so no one can understand, B. Be more efficient while speaking on the radio. But is there a database or list...

Here are the official police codes https://drive.google.com/file/d/1kUoesLUMjAboQrsxkGZeC3O9GggIHj2o/view?usp=sharing #FREETHERADIO