Chapter 1390 - 1314: Upstream and Downstream
Changyang Science and Technology Vocational School is located in the southern suburbs of Changyang City. It’s neither Changyang, nor science and technology, not even vocational, and it doesn’t resemble a school.
However, the campus management is very strict. You have to use facial recognition to enter and exit, and you need to clock in for classes. The pressure isn’t as intense as high school, and the density of the school is slightly lower.
Cao Chujun intentionally brought two female officers to the school for interviews, visiting the deceased Zhang Xianyao’s dormitory, classroom, classmates, friends, and teachers, walking through everything.
Meanwhile, the cyber security team began to check Zhang Xianyao’s mobile phone and laptop, from WeChat to browser records, eager to comb through everything. Image Investigation, without waiting for Jiang Yuan’s coordination, proactively started collecting surrounding surveillance records. The folks in Technical Investigation were unusually cooperative this time, as long as the Criminal Police Brigade submitted a report, they started working without hesitation, unlike their previous reluctance and hesitation.
The investigative effort in a homicide case compared to a non-natural death can be likened to a naked exam at Tsinghua University versus a sponsored arts student.
A non-natural death might often just be a matter of a few police officers writing a report, but once it’s discovered to be a homicide, all sorts of resources converge.
Even if it’s a crime of passion where the suspect turns himself in, the evidence and information collected are just as thorough.
Just because the suspect decides to surrender due to emotional factors doesn’t mean they won’t retract their confession once in detention or court, or even write to the prosecutors after being in prison. This could happen two years, three years, or even ten years later. By then, it’s uncertain if the case officers will remember anything; seasoned detectives like Cao Chujun might have already retired.
Ultimately, only the paperwork can transcend time.
As for solving the case, no one feels there are too many difficulties.
Not to mention having Jiang Yuan here; even without Datuk Jiang, Cao Chujun believes he has the capability to crack this case.
Of course, drowning cases are generally quite difficult, but Cao Chujun’s ability to solve cases is also above average.