The customer went to the checkout counter to pay, and the cashier started scanning the items, which included two bottles of mineral water.
Luke pointed to the cashier on the screen, addressing Little Black beside him, "Go to the car and get the fingerprint analysis kit, then bring her in here for a fingerprint comparison."
A few minutes later, the door to the office opened, and Little Black returned to the office with the cashier and the store owner, Osmon.
Osmon inquired, "Deputy Chief Luke, does this case involve my cashier?"
Luke turned the computer screen toward everyone and pointed at Jennifer, saying, "This lady is the female victim who was poisoned. Surveillance footage proves she definitely came to your supermarket, and she made a purchase—it was this young lady cashier who helped her check out.
We need to ask her a few questions."
The store owner Osmon then said to the female cashier, "Joey, don't be nervous, just answer truthfully."