What Quan Qiao was holding in his hand was a small piece of unburned incense.

She spent a lot of effort to get that incense for Ouyang Yunye, and she repeatedly instructed Ouyang Yunye to clean it up thoroughly.

She also arranged for people to investigate thoroughly to ensure that no traces were left.

How come there are still some left there?

Qin Jin also frowned as he looked at it. He was a senior criminal police officer and was always meticulous. He hadn't found this thing during his inspection just now, so how come Quan Qiao saw it as soon as she arrived...

Quan Qiao picked up the incense and smelled it, then said indifferently:

"It's Nanayaka."

Qiyexiang is a hypnotic incense that circulates on the black market, and one stick sells for as much as 100,000 yuan.

It only takes one hour of fumigation to make a person sleep for seven days and seven nights.

The old woman was just sleeping soundly and didn't hear any noise, so the effect must have been short.

Qin Jin frowned. "So someone used the Seven Nights Incense to deal with the old woman? How could they be so cruel as to attack an old woman?"

"I was wondering why I didn't hear anything at all. So this is the reason! This is really too much. How could they even not let an old woman like me go..."

The old woman exclaimed, her voice full of surprise.

Quan Qiao was as calm and composed as ever. She handed the incense to Qin Jin and instructed:

"Take it for fingerprints."

"yes!"

Qin Jin answered readily and immediately went to give instructions to his subordinates.

Fu Yi stood beside him, his eyes darkening.

The relationship between Quan Qiao and Qin Jin seems to be very unusual.

Especially Quan Qiao's professional look, there was something wrong...

Quan Qiao has already walked towards the basement.

The lights were turned on in the basement. Originally, it was filled with boxes of materials, but now it was empty, not a single box left.

Qin Jin followed Quan Qiao and said awkwardly, "We've already checked the basement and didn't see any footprints or fingerprints."

Quan Qiao didn't say anything and walked around the basement.

Finally, she stopped in a corner and asked Qin Jin:

"You can't even see such a big footprint?"

Qin Jin lowered his head and saw that it was in the corner, which was very humid, and there was half a footprint left on the muddy ground.

He rubbed his eyes, unable to believe it.

I've been here before, but I didn't see any of this. How could it be...

Quan Qiao has already instructed: "Based on the pattern of the footprints, investigate the relevant people involved.

We have also arranged for people to search major garbage stations, rivers and other areas to see if there are any discarded shoes."

Qin was just like being enlightened.

Yes, after committing the crime, the murderer would definitely think about destroying the evidence as soon as possible and would discard shoes, gloves, etc.

He opened the map on his phone and quickly located several nearby locations where the tools might have been discarded. He instructed his subordinates:

"Go check it out immediately!"

"yes!"

Several teams of people hurried off to investigate.

Quan Qiao came out of the cellar and sat in the hall waiting quietly.

Qin Jin poured her a glass of water and was about to hand it to her when another big, bony hand took it.

Fu Yi held the water, raised his head and drank it, and the gentleman said:

"Thanks."

Afterwards, he personally poured a cup for Quan Qiao and handed it to her.

Quan Qiao: ...

Qin Er: ...

Fu Yi was as dignified and calm as ever. He naturally sat down next to Quan Qiao and looked at Qin Er and asked:

"Captain Qin seems to know my fiancée?"

"This..."

Qin Er thought of Quan Qiao's secret identity and made up an excuse:

"Because of Professor Fu, who in the Imperial Capital doesn't know Miss Quan Qiao? Her infamy is known throughout the Imperial Capital. She really has Professor Fu to thank for that."

There was a hint of ridicule and blame in his voice.

Because of this man, his master had suffered so much unwarranted infamy. Humph!