A: Were you at the scene during the robbery? B: Yes, I was, Officer. A: Were you able to see a lot? B: I was there as it happened. A: What happened? B: The robber came in with a gun. A: Could you see his face? B: He had a mask over his face. A: Was he with someone else? B: He was alone. A: Would you be willing to come down to the station for further questioning? B: I would be happy to.