Definition: (law enforcement) Initialism of sheriff's department.
Alright class, settle down and let’s take a look! You’ve stumbled upon a little mystery, haven’t you? You see “SD” and wonder what it could be. The dictionary tells us, with a helpful decree: “It stands for Sheriff's Department,” plain to see! Think of it like this – it’s an abbreviation bright, A shortcut used by law enforcement, shining light. "SD” is short for Sheriff’s Department , you agree? Now let’s move on and continue with our decree! Do you have any questions about that, my dears?