Some interesting ideas here........
One thing I find funny is people referring to LEO and civilians as if they are separate. Cops are civilians, just like plumbers, mailmen, and my accountant. It's a job. Many try to make it more, but it is not.
Police refer to non-police as civilians to show they are not one in the same. Usually, the only time you will hear an officer mention any affiliation with non-police is when they are retiring and/or they are trying to build rapport after being unfairly placed on trial in federal court after they were forced to beat someone who was subdued, rape an offender, or other actions their department and local prosecutors supported them on.