"Didn't anyone tell you that being a police officer was a chore when you were training at the police academy?" Lin Xuan quipped, "If you can't bear hardship, don't be a policeman, you've only been in for a few years, while you're still young, it's still too late to change careers." ”

"I didn't say I was afraid of hardship. I just think that the things taught in the police academy are different from the actual handling of cases. Ge Bin heard Lin Xuan say this about him, and he was afraid that others would think he was pampered and looked down on him, so he was a little anxious, "I don't use any of the theoretical knowledge I learned in the police academy now." ”

"So for the police profession, the accumulation of experience is very important. An experienced and capable veteran criminal policeman can often quickly find important clues from the clues, not because he can read minds, but because he quickly judged the suspect's motive, modus operandi and other important clues through his years of experience in handling cases, and found the correct direction to solve the case. Wang Xiangrui said earnestly.

"The profession of a police officer is not as simple as you think, and you can't solve cases according to the theoretical knowledge in the books. Now that you have stepped into this position, quickly throw away those impractical things, follow the leader to learn skills, and see what is the real case! Lin Xuan had a passer-over tone.

"Okay, let's get down to business." Huang Fangyuan brought everyone back to the topic, "Actually, this question just now should be connected with another question, that is, what is the suspect's motive for committing the crime?" If you can find out the motives of the suspect, you can know whether he committed the crime randomly or premeditated. ”

"I think it's an impromptu robbery. It may be that the suspect often moves around the forest park, and the park is easy to find the target of the attack, and the place is convenient to hide his whereabouts from detection. Ge Bin quickly collected his emotions and devoted himself to the analysis of the case.

"Why did the third case suddenly change the location of the crime?" Lin Xuan asked Ge Bin.

"That is, the perpetrator is not the same person, and the third case happened to use the same method as the first two." Ge Bin changed his words.

"The similarity is so high, such a coincidence is a bit too 'coincidence'." "I tend to do it by the same person. ”

"It's also possible to imitate the crime." Ge Bin added, "In order to confuse the police, let the police think that the same person committed the crime." He can blame the suspects in the first two cases, so that he can successfully escape the police. ”

"You kid, have you watched too many TV series?" Lin Xuan teased him again, "Could it be that person has an undercover agent in the police force and told him all the suspect's modus operandi that we know?" ”

"Ah...... Don't ask me, I don't have enough brains. Ge Bin gave up completely.

"Have you noticed that if it was a robbery, the victim's wallet and mobile phone were there?" Huang Fangyuan once again raised a key doubt.

"There is too little money in the wallet, and the elderly will not carry a lot of cash with them when they exercise." Lin Xuan said, "And the sale of mobile phones is easy to find." ”

"Is it easy to sell gold ornaments?" Huang Fangyuan retorted.

"If it was a temporary robbery, it would make sense. The suspect was afraid of being seen, and he was in a hurry when committing the crime, so he picked the easy one to take. Wang Xiangrui analyzed, "This is also why the victim's earlobe was torn in the first case, which shows that the suspect did not spend enough time to get it, but used brute force to tear it off in a hurry." ”

"In other words, everyone agrees that the suspect's motive was to rob money?" Huang Fangyuan looked around at the other three.

Some nodded their heads, some remained silent.

"Okay, let's analyze it according to the random crime of robbery. Assuming that I am a suspect and I am in urgent need of money now, I will definitely wait in the middle of the night to ambush those female white-collar workers who return late. Huang Fangyuan snuffed out the cigarette butt, stood up, walked back and forth in the office with his arms around his chest, and analyzed according to his logical thinking, "They often have a lot of property on them, I can ride a moped or find the target and follow behind, grab the bag and leave while they are unprepared, there is no need to hurt people." This has a high success rate and low risk. ”

Lin Xuan, who seemed to be persuaded by Huang Fangyuan's hypothetical analysis, echoed: "It makes sense, the suspect is ruthless, is it just for a gold necklace, a pair of gold earrings, and a steel watch?" ”

"What if the suspect is disabled, has limited mobility, or is not strong enough?" Ge Bin is still trying to refute.

Lin Xuan turned around, looked at Ge Bin and said: "This is impossible, one blow can smash a person into serious injury, which shows that this person's strength must be extraordinary, even if he is not tall and big, at least he is strong." The second victim also stated that he did not immediately lose consciousness after being attacked by the suspect, and he could feel the suspect quickly snatch his watch and flee. It can be seen that this man's skills are very agile. ”

As with the previous analysis and discussion, the investigators of the criminal investigation detachment gave a preliminary description of the suspect based on the clues provided by the victim Hua Wanquan after he woke up in the second case, and carried out a search according to the labels such as "male, young and middle-aged, and able-bodied". But such a label is too popular, and when you stop on the street, you can summarize it for men who are not too old or too young, and who are able-bodied. This is the main reason why there has been no progress in the case so far.

"Look, this kind of analysis and discussion will not play a practical role in solving the case!" Ge Bin complained.

Huang Fangyuan was unmoved, he said stubbornly: "Lao Wang, after a while, you and Lao Tang and their group will go to visit inside and outside the park to find witnesses." Lin Xuan and Ge Bin were responsible for carefully reviewing the surveillance around the forest park where the first two cases occurred. ”

"I've seen it carefully, there are too many people coming in and out, and there is no direction at all, so can I give some hints?" Lin Xuan had a bitter gourd face and was anxious to ask for help.

"Let's see if we can find people who have been in and out of the park every day before and after the crime, and if there are any young adults among these people who match the characteristics of the suspect, try to find suspicious people among these people." In fact, Huang Fangyuan didn't know the bottom of his heart when he said this, he also knew that people who went to the park to exercise early were in and out every day, which was tantamount to looking for a needle in a haystack. And in terms of the camera pixels installed at the entrance and exit of the park, it is a question of whether you can see the facial features of people entering and exiting, and how can you judge the age of people? It was completely futile. But there are no clues at the moment, and this is the only thing they can do.

"Don't be discouraged, we will definitely be able to pull out this demon." Wang Xiangrui cheered up the two dejected young men. He knew it was the first time they had ever faced a real test since they became police officers.

"I suddenly had an idea...... Lin Xuan suddenly raised his voice and said, "How about we call that suspect 'Craniotomy Jack'?" He also seems to want to help lift everyone's spirits, liven up the atmosphere in the office, and break the dull and oppressive atmosphere.

"You kid is good at this kind of thing, just use this energy to solve the case." Wang Xiangrui slapped the back of Lin Xuan's head vigorously as he spoke.

Although Wang Xiangrui pretended to be accusatory, his face was also amused by him with a rare smile for more than half a month. Lin Xuan was beaten by Lao Wang, covering his head and grinning. However, seeing that everyone was frowning because of his words, it was quite useful in my heart.