In interrogation, you don't bother asking questions you can't verify.
"You're the wrong person? You weren't in the warehouse at 2pm? Where WERE you, then? Who was with you? Who can vouch for your being there? Where do they live? How long have you known them?"
You keep asking questions, and keep going back to prior questions. Under stress, it's hard to remember the lies you told, and keep them straight. If you're lying, your answers won't stay consistent. When your answers show discrepancies, if a car was red the first time you answered but now it's blue, they know you're making up a story.
Thank you for the helpful example.
TJI