(At The Police Station)
Cop: Witness said his name was John.
Boy: Witness?
Cop: Yes, you're the witness. You witnessed something. You saw something happened, an emergency, an accident. Isn't that right?
Boy: Well, yes, but you see I was just over and ...
Cop: Just give me the facts, sir, please, just the facts. Address?
Boy: The facts? The address?
Cop: Yes. Where did you witness this accident?
What does "Just give me the facts" mean?
Does it mean "Just tell me the facts"?
Yeah, give me means provide me with, so the cop is effectively saying "I don't want any speculations, or excuses, or lies - provide me with factual information".
Give can be more general too, if you give someone trouble you're not providing them with anything, but you are causing them to experience problems. So you can read "give me the facts" as the cop saying that they don't want to hear anything that's untrue, they don't want their time to be wasted, etc.
So the witness doesn't necessarily need to say anything, if they have no information to give! But in this situation, they'll probably be forced to answer questions. Also, just the facts [ma'am/sir] is a police cliché, a thing that characters often say when they're interviewing witnesses.
