National Forensic Doctor

In the next two days, Jiang Yuan and Liu Jinghui collaborated, and used two cases to train the attending police officers.

The purpose of the training was not so much about solving cases but more about teaching frontline officers how to work with units like the Criminal Science, Image Investigation, and others, how to preserve evidence, and how to expand investigations to the maximum extent.

If frontline officers are likened to infantry, then units like Criminal Science, Image Investigation, and Technical Investigation are equivalent to artillery, armored troops, and air bombardment forces...

Infantry is the foundation of combat, capable of occupation and offense, can operate independently or coordinate offensives with other branches. But as the scale of warfare rises, coordination between infantry and artillery, infantry and tanks, and ground and air becomes the most efficient.

For the current Jiang Yuan and Liu Jinghui, or rather for the current Jiang Yuan’s Accumulated Case Team and the Taihe Working Group, mastering various coordination techniques is essential even for basic criminal police officers. Simply monitoring DNA with phones won’t cut it; at the very least, complete trace collection is necessary, especially for fingerprints, tools, and footprints. Moreover, even if unable to collect plant spores’ level of evidence, knowing which evidence to preserve and keeping thorough records to maintain the option of legal botany is crucial.

Additionally, surveillance video collection, especially civilian surveillance, is also of the utmost importance. The latter often requires the cooperation of the tireless footwork of frontline officers; only by visiting more places, asking more questions, and thinking more can enough surveillance videos be collected.

This training is partly skill-training and partly practical demonstration.

Only when everyone sees the efficiency of practical application will they be willing to exert effort to collect the corresponding evidence. Otherwise, evidence like plant spores—if no one in the unit can interpret it, and Jiang Yuan doesn’t assist—collecting it might become a mere waste. After all, not every unit has a criminal police officer like Pang Jidong who is interested and able to invite the corresponding professionals.

On the other hand, in the information Huang Qiangmin disseminated, this also became a precondition in their all-inclusive model.

Faced with a tricky case, don’t rush. If Jiang Yuan is not immediately available, you can preserve the evidence first, organize a task force and try traditional methods or strategies like infantry-artillery coordination.