As the detective narrowed his aim on the person he thought was the killer, a woman, he had a momentary glance at her desk and noticed when he could easily identify as a bank receipt.

We were able to see the receipt though the detective could not pick it up because the possible killer was right there in the room and he had no right to perform a search.   We could see the receipt, however.   It was no more than an ATM receipt from a local bank for a two hundred dollar withdrawal.  It was stamped 2:07 PM.

Why does it matter that the possible killer was at the ATM at 2:07?  Because time and space will solve the mystery.

Our poor detective, however, has only seen that there’s a receipt there.  He has no idea what’s stamped on it.