331: Chapter 299: Short Hair with a Scar 331: Chapter 299: Short Hair with a Scar Everyone had tasks at hand, except for Wang Bo.
With no work to do or assigned tasks, he silently took out his phone, snapped a few photos, and sent them to the work group chat.
In the work group, forensic and on-site technical staff had been dying of curiosity.
Seeing new ssages, especially about a newly discovered fingerprint, they were instantly shocked.
Fingerprints ant there was a possibility of directly identifying the murderer.
It was bewildering to everyone how such crucial evidence could have gone unnoticed and then been found.
Li Yuanliang: “The fingerprint Jiang Yuan found?
Where was it?
Sowhere we missed scanning?
@Wang Bo”
Wang Bo then sent another photo showing the position of the fingerprint.
It was at the bottom of the window fra, which should be a fairly obvious location.
Li Yuanliang: “We missed scanning that?
Are you kidding?”
Wang Bo: “It’s a quickly pressed fingerprint, not very noticeable.
Jiang Yuan used toner from a laser printer mixed with magnetic powder and brushed over it several tis before it ca out.
When I first saw it, I also felt it was miraculous, as it didn’t quite look like the normal fingerprint powdering.”
Wang Shouming: “Can brushing reveal such detail?”
Wang Bo: “At first, there was hardly any trace.
But after a second brushing, a bit of the fingerprint appeared.
You need a forensic light to see it.
After focusing on brushing it two or three more tis, it gradually beca clearer.
This was my first ti seeing such a thod.”
Normally with fingerprint dusting, you sprinkle the powder, and the fingerprint appears.
If it’s not clear, it’s usually because there’s not enough powder sticking to it, so you just add a bit more and that’s usually enough.
But with the fingerprint using printer toner mixed with magnetic powder, you had to brush it three or four tis, even four or five tis, and it would gradually beco clear.
This thod was sothing Wang Bo had neither seen nor learned before.
Changyang City’s work group fell silent.
It took a while before soone spoke up again:
Li Yuanliang: “I asked an expert.
They said laser printer toner has a density close to that of copper and aluminium powders, with a weight falling between aluminium, copper, and magnetic powders.
It also has a magnetic property slightly weaker than magnetic powder, mainly due to its inherent electrostatic magnetic property.
It can be used alone or mixed in different ratios with magnetic powder according to seasonal and environntal changes, making up for the loss of small particles during prolonged dusting…
What the hell, dusting has to consider the season and environnt?”
Wang Shouming: “Can’t be true, right?
If it’s that useful, they should have provided us with it in our investigation kits.
Why make such a fuss?”
Li Yuanliang: “I’m just quoting the expert verbatim, not my own words.
The exact quote from the person is: ‘If you’re not an expert, using printer toner will backfire.
If soone is proficient enough to use toner, just kneel down and shout long live.'”
Wang Shouming: “Which expert talks like that?”
Li Yuanliang: “My uncle said it.”
Wang Shouming: “…
Your uncle is right, long live, long live, long long live!”
Wang Bo’s head was already swelling from what he was seeing.
Although the people chatting in the work group were colleagues, and they had supervisors in the group, Wang Bo couldn’t help but carefully choose his words before speaking up.
Wang Bo: “When I was in school, the professor taught us not to dust multiple tis.
They said that if the results are satisfactory after one or two dustings, it’s okay.
But if not, multiple dustings can easily smudge the lines that have already appeared or result in a completely black ss.
Only in extrely dry conditions are multiple dustings allowed…”
Wang Shouming: “Xiao Bo, although I don’t understand this stuff either, let add sothing.
Theories are good to know, but watching the experts work and shouting 666 is the safest bet.”
Li Yuanliang: “Don’t lead the young people astray.
This issue is worth discussing.
I also looked up so information just now…
The thod Jiang Yuan used requires complicated ratio mixing.
Forget about it, what I think is key here is why he would repeatedly dust the windowsill.
Did he find sothing?
@Wang Bo”
Wang Bo: “He found footprints.”
Wang Bo then went on to describe the situation as it unfolded after Jiang Yuan arrived.
The technical and non-technical staff in the work group all fell silent.
The footprints Jiang Yuan found didn’t need dusting.
It should be said that they were right there, but nobody had thought to look down from the window due to the abundance of footprints everyone saw.
The second floor of the colored steel house was about the sa as a normal second floor, with a height of around 3 ters.
Investigators checking the second-floor room wouldn’t have expected the murderer’s escape route to involve jumping through the window.
Why would they?
No eyewitness had been reported until now; the main door was wide open anyway.
The murderer had walked in normally, killed the cashier normally, so why not leave through the door normally?
Li Yuanliang: “Sothing unexpected must have happened.
Otherwise, if the murderer had left normally through the door, he wouldn’t have left behind fingerprints or footprints, at least not ones that could be distinguished.”
Gao Long: “But isn’t murdering the cashier an unexpected event?
Normally, one wouldn’t think to kill.”
Li Yuanliang: “Was it excessive agitation?”
Wang Shouming: “Being agitated is normal; anyone involved in a robbery would have accelerated adrenal secretion.
If it were common, that would be too terrifying.
There shouldn’t be such hardened criminals around now, right?”
“Xiao Bo,” He Guohua called out, jolting Wang Bo, who had been engrossed in his phone, back to awareness.
“Yes, I’m checking what they’re saying in the group.” Wang Bo quickly offered a smile to his master.
He Guohua said seriously, “You take Jiang with you to investigate the car and turn on the computer.”
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