"Hmm." Su Ping responded.

At this moment, there was a knock at the door, and at the same time, Lao Wei's voice came from outside: "Team Su, Team Su, are you inside?" ”

"It's coming!" Su Ping replied and went to open the door.

Lao Wei took a graduate student into the small room, and at the same time said: "The van is almost done with the survey, so I left someone to continue to do a detailed investigation and wrap it up, and we came over first." How about it, listen to the Soviet team on the phone, there are important clues? ”

Su Ping took out the sealed bag, handed it to Lao Wei, and said, "The broken bones found in the bathroom, and Xiao Qi sprayed it once with luminol reagent in it, there is a large area of fluorescence reaction, we suspect that Chu Xunliang's body may have been dismembered in the bathroom, and then further processing." ”

"This ......" Lao Wei hesitated for a while, and said: "Although trace inspection is our task, this kind of biological traces, especially the further identification of objects that can make luminol reagent fluoresce, confirm whether it is blood and whether it is human blood, or forensic science is more ......."

"There is a shouting of the old man, I guess it's almost there." Su Ping said: "I called you here to let you do another detailed investigation of the room, see if there can be further discoveries, such as footprints or something, and it would be better to find evidence that is sufficient to prove that the other suspects are also involved in this case." ”

After a pause, Su Ping said again: "Xiang Haichuan looks very concerned about personal hygiene, but I think this floor has not been mopped for two days, you use the vacuum coating sampling method to see if you can extract the footprints." If there is a blood footprint, that's even better. ”

"Cheng, I'll try." Lao Wei finally nodded lightly in agreement.

Su Ping added: "The murder weapon ...... Or that the machete, which is suspected to be the murder weapon, was found and hidden on Xiang Haichuan's bed, covered with a futon. ”

"Hmm." Old Wei bowed his head, and finally his eyes fell on the safe, and the gold bars placed on the safe: "This is...... Gold bar? I'll go, is this Xiang Haichuan so rich? Could it be that this series of cases also involves buying homicide? ”

"No, you ...... carefully" Su Ping didn't finish speaking, then paused, thoughtful.

It stands to reason that even if Xiang Haichuan was deceived, such a big gold bar, the price that the person who deceived him sold it to him is estimated to be not cheap, and he can't take it out.

Then Lao Wei Gang's words are not unreasonable, this case may also involve buying murder, and it may even be using this kind of fake gold bar as a means of payment.

Xiang Haichuan has spent most of his life in prison, and has basically continued to commit crimes as soon as he is released from prison, so he is likely to have a certain degree of anti-social fee personality, and may also have a hatred of the police.

In this case, it is not impossible for someone to use 30 one-kilogram "gold bars" as bargaining chips and ask him to kidnap and kill Chu Xunliang and Cao Mingyang.

Just thinking of this, I saw Xiang Haichuan pouting: "Scared me, I thought it was really a gold bar, the relationship was fake, and I almost blinded my eyes." ”

Qi Yuan couldn't help laughing.

Except for scammers, few people would make copper into this shape, and the first thing that comes to mind is indeed gold bars. However, due to the special physical properties of gold, it is actually quite easy to distinguish the authenticity of such a large gold bar.

Not to mention the color, many people may not be able to compare without reference, but the density is different, but anyone with a little common sense knows that the density of gold is extremely high, and at the same time, the density of solids and liquids is also extremely difficult to change, and it is difficult to fake in this regard.

Su Ping nodded lightly and said: "This gold bar is indeed fake, there are two possibilities, Xiang Haichuan may intend to deceive people, or be deceived, I am more inclined to the latter."

And among the latter, including the possibility you mentioned, this case may involve buying a murderer and collecting gold bars from Haichuan, but he was deceived and the gold bars are fake. So...... Examine the gold bars and see if you can extract fingerprints or something. ”

"No problem." Lao Wei took over the task and said: "The surface of this 'gold bar' is very smooth, and it is the easiest to leave fingerprints, which is the strange dazzling yellow and golden gold...... You wait for me to take a good look. ”

Su Ping snorted.

After a while, Yan Zhongxin also arrived at the scene, and Su Ping told him about the matter, so he asked him to go in to investigate.

After another moment, Su Ping received a call from Xun Mu, saying that the airport security had stopped a person, and he was intercepted for carrying an excessive amount of gold, although it was finally found that the gold was fake, but he was left by the airport police because of his panicked demeanor.

Because the airport public security also received a request from the criminal investigation detachment, and fully cooperated to eliminate the possibility of the suspect leaving Yuqiao through the airport.

After that, the police of the airport public security looked at him a little strangely, so they gave him a urine test by the way, and the result of the drug test was positive.

"Fake Gold...... Su Ping thought for a moment and said: "Please send the photos ......of the fake gold to you from the airport public security, and I will also send you a set of photos, you can identify it, if the gold style is similar, immediately send someone to the airport to escort that guy back." ”

"Understood." Xun Mu responded and hung up the phone.

A few minutes later, his mobile phone rang again, and Xun Mu told him that the suspect's luggage that was stopped at the airport was also found in the same specification of fake gold bars, but the number was much less, only ten.

"Team Sue!" At this time, the graduate student also ran out of the bedroom, still holding a stack of award certificates, and said, "I found this thing in the suspect's pillow, look at it." ”

"What is this?"

"Certificate of participation and award certificate of the helicopter model airplane sports competition." The graduate student said, "Look, it's pretty impressive. It just so happened that in this case, didn't a suspect use a helicopter to send a USB flash drive containing the murder video to the Wang Hua Community Police Office? Here! ”

Su Ping immediately took the pile of certificates, flipped through them, and then raised his eyebrows: "So, Xiang Haichuan controlled the helicopter to deliver this USB flash drive to us?" This guy isn't so unlearned, he still has some kung fu at hand, so why don't he do his job......"

"Well, I may know a little bit about it......" Qi Yuan beeped quietly: "There is still a huge gap between model airplanes and toy helicopters, and the cost is expensive, especially oil-powered model airplanes such as oil-powered helicopters, which are even more expensive. ”

After a pause, he continued: "Qualified model airplane enthusiasts basically have the ability to build their own model airplanes, but this thing is difficult to sell, because the circle is small, and most of the people in the circle are still professional, and they enjoy the fun of doing it themselves." ”