The crime scene in this case didn't have such conditions.
The area was over a hundred square meters large, with layers upon layers of remains, many of which were twisted and deformed pieces of steel; the workload of cleaning the entire area was unimaginable.
Moreover, the purpose of such cleaning could only be to obtain DNA, but given the vast and complex area, handing over the DNA evidence collected to the laboratory would mean experiments ran indefinitely.
By this time, Jiang Yuan had already gone over all the parts that Zhao Jing hadn't inspected, and without a word from either of them, they began to silently examine the areas the other had already looked over.
It was somewhat competitive, or rather, it was outright competition.
Zhao Jing stood up, walked out of the scene, changed his gloves, drank some water, and then stood silently thinking somewhere for a moment—he also took the opportunity to pee in his pants, letting it trickle down to the ground.