Long Qian was lifted up to level the screen and turned to face the emperor.
"Your Majesty, I will now show you the function of this instrument."
"Okay!" The emperor nodded patiently.
Long Qian turned on the power, and after a few provocations, a light emitted from another instrument hit the screen held up by Chu Lingxu.
"Wow!" Many people who had never seen lights were startled.
How come the unlit candle suddenly lights up?
Long Qian ignored it and turned on a few more switches.
"Okay!" She raised her head and handed over again.
"Your Majesty, this fingerprint reader can display anyone's fingerprints and can automatically identify whether two fingerprints match."
"The civilian girl will give you a demonstration first." Long Qian put his index finger into the scanner.
There was a "beep" sound, and an enlarged shadow appeared on the screen.
Long Qian took back his hand and looked back at the screen.
"This is the fingerprint of the index finger of the girl's right hand." She pointed at the screen, turned around and put in another finger.
"Here's the print from the middle finger, and the ring finger, kid."
Long Qian put several of his fingers in one by one, pressed a button, and turned back again.
"Now there are four sets of fingerprints on the screen. You can clearly see that they are all different, right?"
"It's really different." Some people stood up in surprise, "Are the fingerprints on each finger different?"
"It looks similar. It's not surprising that there are repetitions." Concubine Dong put down the cup with some disdain.
Long Qian is already dead, so why does he still appear?
The worst part is, she also saved the emperor!
I originally thought that by marrying Princess Ning Guo, I would probably be crowned prince tomorrow, but unexpectedly, Princess Qianling suddenly appeared.
Long Qian looked at Concubine Dong and bowed her hands politely.
"There will be no repetition! Concubine Dong, if you don't mind, I would like to borrow your cup."
Concubine Dong lowered her head to look at the cup and said calmly: "What can be seen in a cup? You can take it away if you want."
When the palace maid bent down to take the cup, Long Qian strode over.
"Sister, palace maid, don't bother me! I'll just come."
Long Qian took out his gloves from his sleeves and put them on, then gently picked up the cup and brought it back.
"I wear gloves to prevent my fingerprints from falling on the cup, and also to protect the fingerprints above the cup."
Long Qian returned to his low table and put down the cup.
No one knew what she was doing, but soon she raised her head and faced the emperor again.
"Your Majesty, the daughter of the people collected two sets of fingerprints on the cup and now displays them on the screen."
As soon as he finished speaking, Long Qian lowered his head and pressed a button.
The images on the screen changed, from the previous four groups to the current two groups.
Long Qian opened the telescopic wand and pointed back at the screen.
"Based on the location of the fingerprints on the cup, the folk girl probably knows which one is the fingerprint of Concubine Dong and which one is the fingerprint of the palace maid sister."
"The one on the left should be the fingerprint of Concubine Dong's right thumb. If Concubine Dong doesn't believe it, you can come out and verify it."
Concubine Dong met Long Qian's gaze and frowned immediately.
"That's nonsense! How come my fingerprints are on the cup?"
"Concubine Dong, go and try." The emperor reminded lightly.
Concubine Dong gently clenched her fists and stood up.
"Yes, Your Majesty." She leaned toward the Emperor, and then walked into the palace with the help of the palace maid.
"Long Qian, you'd better find out the real culprit, otherwise I will definitely punish you for deception!"
