A confidential personnel file has been printed in the east wing. The camera record appears to put Nora beside the printer.
CAMERA A / 7:26:20
Nora is on the west side as the connecting passage reopens after a fire-system test.
THE ROUTE
From that recorded position, the fastest physically possible route to the east printer takes 90 seconds. All accessible routes have been checked.
CAMERA B / 7:27:05
The second clip is labelled with the same date and identifies Nora at the east printer.
Can both records be right as labelled?
Compare the times
THE TIME DOES NOT FIT
Forty-five seconds too early.
The east camera is labelled 7:27:05. That leaves only 45 seconds for a journey that needs at least 90.
These records cannot describe one journey as labelled. The contradiction tells you to re-examine the timestamps, the identification, or the sequence; it does not yet tell you which is wrong.