Inspired by a police SUV with “Sergeant” painted on it.
Here is the LAPD(with job descriptions for each):
“Sworn Police Officer Class Titles and Job Descriptions
The following list represents the various class titles of sworn LAPD police officers. For a description of the job duties for each class title, click below.
Police Officer
Police Detective
Police Sergeant
Police Lieutenant
Police Captain
Police Commander
Police Deputy Chief
Chief of Police”
There are too many separate police forces to give you one comprehensive list. @marinelife‘s list is a good representative sample however.
It depends entirely on the jurisdiction. Some smaller communities don’t even have police departments; they rely on a local sheriff’s office.