A Norman incident can begin on a street, at a campus event, in a public building, or during a traffic stop. It may continue through transport, booking, detention, medical care, or court. Different people may control each stage, and the most serious harm may happen after the first contact.
You do not need to determine which department bears responsibility before calling. Tell Addison where each stage occurred, what uniforms or vehicles you remember, whether charges remain open, and what medical attention you needed. The firm can organize the legal and factual questions from there.