"Jiangbei, then tell me, what does the image of the murderer look like?" Zhou Fengshan decided to listen to Lin Jiangbei's analysis first.

"Principal Zhou, first of all, the murderer's financial situation must be very embarrassing, otherwise he would definitely not be able to smoke even a dime a pack of cigarettes." Lin Jiangbei first said his first conclusion.

"Not necessarily, right?" Wang Jiangang put forward a different opinion, "Some old cigarette guns dislike paper cigarettes that are too small, so they like to buy their own local cigarettes and roll them into cigarette rolls to smoke." If this cigarette butt is filled with Mi Dachang dry tobacco, the cost is not necessarily cheaper than cigarettes! ”

Of course, Lin Jiangbei knew about Mi Dachang's dry smoke.

At this time, Hangzhou is famous for its "five Hangzhou" specialties, which are "Hangzhou fan", "Hangzhou scissors", "Hangzhou line", "Hangzhou powder" and "Hangzhou smoke". Among them, the representative of Hangzhou tobacco is the Mi Dachang dry tobacco shop located in Qinghefang, Hangzhou.

In 1915, Mi Dachang Dry Tobacco was famous for its strength, and won the bronze medal at the Panama International Exposition in 1915, and the processed tobacco was divided into four grades: Gongqi, Baiqi, Yuanqi and Chengqi. Even if you buy the lowest level of Qiqian tobacco to roll cigarettes, the cost does not have to be cheaper to buy cigarettes.

"Hehe," Lin Jiangbei opened his mouth with a smile, "Captain Wang, your analysis is indeed reasonable. However, this cigarette butt is not Mi Dachang dry tobacco, or even other brands of local tobacco in Hangzhou. ”

"What do you say is in it?" Wang Jiangang asked rhetorically.

"It's filled with shredded tobacco that its owner has picked up from the cigarette butts." Lin Jiangbei said, "If my nose is not mistaken, there are at least three kinds of cigarette tobacco in this cigarette butt, which are Laodaopai, Hademen and Three Forts. ”

"What?" Wang Jiangang looked at Lin Jiangbei in disbelief, "Lin Jiangbei, you're not joking, are you?" ”

"That's right, Lin Jiangbei, this matter must not be a joke." Zhou Fengshan also looked at Lin Jiangbei with a serious face.

Although they did see Lin Jiangbei sniffing the cigarette butt under his nose with tweezers just now, they couldn't believe it, Lin Jiangbei could smell the tobacco in the cigarette butt by mixing three brands of tobacco with a light sniff.

Not to mention people, even the three police dogs imported from Germany at a high price at the Zhejiang Police Academy, I'm afraid their noses are not so sensitive, right?

Lin Jiangbei smiled confidently, since he crossed over, he had already discovered the strange function of his nose, that is, not only was his sense of smell extremely sensitive, but he was also able to pass through his nose and never forget it. No matter what the object is, as long as he smells it once, he will definitely be able to smell it the second time.

Laodaopai, Sanbaotai and Hademen are all the most common cigarettes in the Republic of China, and Lin Jiangbei has smoked them before, so at this time, he can easily smell the smell of these three kinds of tobacco from this cigarette butt.

However, Lin Jiangbei naturally didn't explain much about the twists and turns in the middle, but just said to Zhou Fengshan: "Principal Zhou, how can students be people who don't know the importance of things?" As for whether the tobacco inside is as the student said, in fact, it is not difficult to verify, wait a moment for us to open this cigarette butt, take out the tobacco inside and compare it with the tobacco of the three kinds of cigarettes: Hademen, Laodaopai and Sanbaotai. ”

Zhou Fengshan nodded. Judging the cigarettes belonging to that brand by the thickness, color, length and taste of the tobacco can be said to be the most basic lesson of a senior old smoking gun.

"This cigarette butt will be dismantled later, now let's take a look at the length of this cigarette butt." Lin Jiangbei picked up the cigarette butts on the white paper with tweezers and compared them with the four small glass bottle cigarette butts in Xiao Zhang's hand, "Did you find that this cigarette butt is very, very short, almost one-third of the length of these four cigarette butts, and it almost burned to the mouth, so the owner was willing to throw away this cigarette butt." ”

Zhou Fengshan and Wang Jiangang both nodded, and they also discovered that the cigarette butt that Lin Jiangbei clamped was indeed too short.

"This also shows the financial constraints of the owner of the cigarette butt from another angle, and even this kind of inferior homemade cigarette has to be smoked to such a small amount before he is willing to throw it away."

Lin Jiangbei said as he put the cigarette butt on the white paper.

"Principal Zhou, Captain Wang, take a closer look at this cigarette butt, it has another characteristic."

Zhou Fengshan and Wang Jiangang hurriedly stepped forward and carefully observed the cigarette butt, but their eyes were almost sour, and they didn't see any other characteristics of the cigarette butt.

Lin Jiangbei shook his head secretly in his heart, it seemed that he still overestimated the police literacy of Zhou Fengshan and Wang Jiangang. Maybe the few veterans who solved the case outside can see the clue from this cigarette butt?

"Principal Zhou, Captain Wang," Lin Jiangbei pointed at the cigarette butt with tweezers, "Have you noticed that the cigarette butt has a circle of obvious marks?" What does this mean? Indicates that the cigarette butt is soaked with saliva. ”

"Yes, yes, yes!"

Lin Jiangbei prompted this, Zhou Fengshan and Wang Jiangang both noticed that there was indeed an obvious mark on the cigarette butt, so they nodded again and again.

"Principal Zhou, Captain Wang, you usually smoke, and there will be no phenomenon of cigarettes being soaked with saliva, right?" Lin Jiangbei asked again.

Zhou Fengshan and Wang Jiangang both nodded and replied, "No." ”

"And why not?" Lin Jiangbei continued, "That's because you usually hold a cigarette in your hand, and when you want to smoke, you will put it in your mouth and take a puff." Therefore, there will be a trace of saliva on the cigarette butt, but it will definitely not be soaked. ”

Zhou Fengshan and Wang Jiangang nodded again. Although they usually don't think about these problems, but if they think about Lin Jiangbei's words carefully, they are indeed such a truth.

"Then the question is, what kind of person would let the cigarette butt be soaked with saliva when smoking?"

Lin Jiangbei looked at Zhou Fengshan and Wang Jiangang, and asked another question.

yes, who would?

Zhou Fengshan and Wang Jiangang's brains couldn't keep up with Lin Jiangbei's rhythm, so they could only look at Lin Jiangbei and wait for Lin Jiangbei to give an answer.

"The answer is that plasterers, or carpenters, have such smoking habits." Lin Jiangbei said, "Because their hands are constantly busy when they are working, they can't free their hands to hold the cigarette at all, so they can only hold the cigarette in their mouth for a long time, and after a long time, the part of the cigarette butt will naturally be soaked with saliva." ”

Lin Jiangbei's words completely pierced the window paper in Zhou Fengshan's mind, and his thinking suddenly became cheerful. He stepped forward and grabbed Lin Jiangbei's hand, and said excitedly: "Jiangbei, according to this, this cigarette butt was left by a carpenter or plasterer, so it is also said that the murderer of this theft and murder case is likely to be a carpenter and a plasterer?" ”

"The carpenter or plasterer who left the cigarette butt was closely associated with the murderer, if not the murderer." Lin Jiangbei nodded and replied.

"Yes, it's not a murderer, and it's also closely related to the murderer!" Wang Jiangang also excitedly stretched out his thumb to Lin Jiangbei, "Consultant Lin, Consultant Lin, you really woke up the dreamer with a word!" No wonder the bureau wants to personally ask you to be a consultant, you are much better than my wine bag and rice bag! All we have to do is find this carpenter or plasterer, and the case will be solved! ”