Chapter 757 - 700 Clarifying Doubts
Qi Changye had just turned halfway around when, as if triggered by a mechanism, he pivoted back to his original position.
"Do you have any updated news?" Qi Changye had an excellent memory, capable of recalling the faces of his middle school classmates, and the scene of Jiang Yuan updating the news was vivid in his mind.
Jiang Yuan picked out a few photos, spread them out on the table, and said, "I’ll show them to you."
While speaking, Jiang Yuan pointed at a photo of a shutter door lock and said, "This rolling shutter was pried open with a special tool."
Next, Jiang Yuan lined up two photos of the ground lock devices and said, "From here, you should be able to see that the lock of the shutter door was pried open with a homemade Z-shaped steel plate combined with a hydraulic jack."
"Have you encountered a similar case?" Qi Changye asked, surprised.
"No," Jiang Yuan calmly denied and then explained, "That’s why I said it was Z-shaped, which is what I inferred from the marks on the ground. Actually, the principle of using a jack to pry open a rolling shutter is the same as that of a crowbar; this suspect has just standardized the lock-picking equipment and is likely to be quite skilled at it."
Qi Changye listened, somewhat perplexed.
Of course, he didn’t have Level 6 skills in trace tool identification, not even Level 1, so it was natural that he didn’t understand.
Seeing this, Jiang Yuan grabbed a piece of paper and sketched a force analysis on the spot, saying, "You can show this to a technician you’re familiar with. The characteristic marks left by jacking a rolling shutter door show that under the upward force F, the bottom edge of the shutter door will be squeezed and deformed by the Z-shaped steel plate, and you will see something different in the marks here..."