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The moment the bomb exploded, the four members of the special case team and the bomb disposal expert all thought at the same time: Oops, this life is gone.

There was a flash of fire and thick smoke everywhere. Although the bomb exploded, it was very weak and banged like a big firecracker. Except for the bomb disposal expert's hand being injured, no one was killed. Even so, especially

The four members of the case team were still shocked and broke out in a cold sweat. The police from outside rushed in after hearing the sound and hurriedly carried the injured and screaming bomb disposal expert onto a stretcher.

It was a false alarm, with confetti flying in the air and a smell of sulfur filling the air.

Hualong said: What's going on? What does this mean?

Professor Liang: This should be a warning from the murderer!

Police chief: A comprehensive inspection of the ammunition engineering student dormitories and laboratories should be carried out.

Bao Zhan: A person who can make bombs will not have such low IQ that we will find the explosives he hides under the bed.

Su Mei: I’m scared to death. What should we do next?

Professor Liang: Pick up trash.

The special case team immediately took action at the explosion site. They wanted to find all the fragments of the bomb, and then piece them together to look for clues left by the murderer. If there are no witnesses or surveillance videos, it will be very difficult to solve the explosion. This is because

After the explosion, the evidence will be wiped out with the explosion, and the rescue measures of the fire brigade and medical staff will also destroy the scene.

After the on-site inspection work was completed, Su Mei used computer animation to restore the entire explosion process. A lecturer in ammunition engineering explained in detail the manufacturing technology of this kind of moonlight bomb. Moonlight bombs must be made at night, and the tools used are also very simple.

, using an ordinary thermometer as the detonating device. After the bomb is placed, the mercury rises with the temperature of the surrounding environment, and gradually reaches the detonation point after the sun comes out. The murderer did not place many explosives, which is why the bomb is not very powerful. Liang

The professor analyzed that this was done intentionally by the murderer, and the purpose was not to kill but to frighten the police.

This bomb was a warning. In this way, the murderer told the special case team that he could blow them up and hoped that the police would retreat.

Su Mei said: The next explosion will probably escalate.

Hualong said: Obviously, we are determined to go ahead and won't back down. Who calls us a special case team?

The explosives were placed in a cardboard box, which was a sanitary napkin packaging box. Bao Zhan picked up a fragment of the cardboard box with tweezers, put his nose close to smell it, raised his face, closed his eyes and said: In addition to the smell of gunpowder smoke and sulfur, there is also

fragrance.

Professor Liang said: Xiaobao, it’s not that I don’t believe your nose, but this carton is very important to us. We should conduct separation tests and smoke reaction experiments immediately.

Gunsmoke reaction is an identification of explosion or shooting residues made by the police in detection.

In the "4·22" armored truck robbery case in Hong Kong, the police used gunpowder smoke reaction to confirm that there was shooting residue on the sleeve of a piece of clothing, thus finding the owner of the clothing, who was the real culprit of the robbery. The assassination of President Kennedy of the United States

In the case, a bullet with the arms serial number C2788 became a physical evidence. In addition to fingerprints, gunpowder residue was also a key piece of evidence to identify the murderer.

Bao Zhan first sprayed some organic solvents on the filter paper, such as ethanol, acetone, carbon tetrachloride, etc., then covered the filter paper on the cardboard fragments to extract, and then separated out the gunpowder particles, metal powder, and combustion products. The rest is

As long as the murderer touches the carton with the residue on his hands, the police will be able to find clues through scientific and technical means.

Bao Zhan used physical examination, which has the advantage of not destroying physical evidence.

However, Bao Zhan tried atomic absorption spectrometry and fluorescence analysis one after another, but failed to find any hand residue on the cardboard fragments, but he was convinced that he smelled a fragrance, which should have been left by the murderer.

Bao Zhan used an electron microscope to observe and found no traces of cosmetics. This result made him disappointed and puzzled. Where did the fragrance come from?

In Bao Zhan's last attempt, he used medium molecule activation analysis to finally confirm that the scent came from a perfume.

Su Mei asked: Could it be that the person who made and placed the bomb was a woman?

Professor Liang: In short, the person who planted the bomb had perfume on his hand. Regardless of whether he was a man or a woman, when the murderer put down the carton, the perfume on his hand remained on the carton. In this world, as long as a crime is committed, it will leave traces

.In the entire world, the position of matter is always changing. There are traces of star explosions hundreds of millions of years ago, not to mention the bomb we have witnessed with our own eyes.

Su Mei said: This carton is a bit perverted. Who would buy a box of sanitary napkins?

Hualong said: There is also the source of the explosives. These are the focus of our next investigation.

Although there is only such a small amount of evidence, there is a glimmer of light in the case, and everyone vaguely feels that the murderer may be a woman.

Professor Liang arranged the work, and everyone acted non-stop. The person in charge of the police conducted a lot of investigation work, hoping to find witnesses. The police visited the dormitory directors of each dormitory to investigate who had seen the cardboard box on the night of the moonlight bomb incident.

, and the person holding the carton. Professor Liang specifically asked the police chief to pay attention to finding the source of the perfume. The dormitory of the campus beauty and the dormitory of Lao Goose were the key targets of investigation. Perfume was found in both dormitories. The boss of the dormitory was also included in the police's investigation.

Suspicious sight, he left the dormitory on the night of the incident, and claimed to the police that he spent the night playing World of Warcraft in an Internet cafe outside the school.

Professor Liang asked Su Mei to verify the words of the dormitory boss, and asked Bao Zhan to analyze and compare the perfume in the two dormitories with the perfume on the bomb carton. The identification results

If it takes time, under certain conditions, the fragrance of high-end perfumes should be maintained for no less than seventy hours, and floral scents should be maintained for no less than sixty hours. Most of the low-quality perfumes used by students can also be maintained for twenty-four hours. Therefore,

There isn't much time left for Bao Zhan. It won't be long before the clue obtained by the police disappears into thin air.

The investigators who secretly monitored Lao Ge reported that on the night of the explosion, Lao Ge had been sleeping in the dormitory. The next morning, this always lazy and unkempt guy did a lot of things. He cut his hair, got a new hairstyle, and even sprayed the boss of the dormitory.

I put on perfume, put on new clothes, and took a bath for the first time. My classmates reported that Lao Gou didn’t have the habit of taking a bath. Lao Gou’s reason was that he wanted to maintain his original taste and true qualities as a man.

In addition to these details of life, there is something very strange. The investigator said that Lao Goose bought a lot of candles, dozens of them, and didn't know what they were used for.

The special case team asked investigators to be more vigilant and continue surveillance. The candles were most likely used to make bombs.

At night, these candles come in handy.

Lao Goose used dozens of candles to place a heart pattern under the school belle's dormitory. Many students stopped to watch. Many windows in the girls' dormitory were opened, and some curious girls stuck their heads out to watch the fun. Investigator

Reporting to the special case team, four members of the special case team arrived immediately. Professor Liang asked Hualong to prepare a net gun. Once Lao Goose behaves in an extreme manner, he will be arrested immediately.

Lao Goose looked like he was risking his life. He pointed at the four members of the special case team and said: Look, the cops are here, cheering me on.

The students who were watching burst into laughter. The four members of the special case team had expressionless faces, waiting to see what Lao Goose would do next.

Old Goose lit the candle with a lighter, and in the night, a heart was burning.

This kind of romantic courtship is not uncommon on campus, and college students are very creative in order to express their love.

Old Goose covered his mouth with his hands and shouted the name of the school beauty. The window of the school beauty's dormitory was never opened. He was tired of shouting, so he squatted on the ground and began to shout "I love you" one after another. While shouting, his body was still

You have to stand up, it looks funny.

Everyone started to boo, and some girls took out their mobile phones to take pictures of Lao Goose.

The old goose shouted loudly: I love you.

The school belle was so annoyed that she opened the window and said, "I'm so annoyed."

The old goose said: Come down, please. Look, so many people are waiting for you.

The school beauty said: If you have the ability, you can strip naked and run around naked, and I will come down.

The onlookers laughed and started to applaud. Lao Goose stood up suddenly, took off his coat, and threw it to the ground. He gritted his teeth and said: Take it off, run naked, run naked, for love, I will fight.

The applause from the surrounding area became even more enthusiastic, and the students present encouraged Lao Goose to run naked.

Su Mei said to Hua Long and Bao Zhan: I really miss my college days. Why didn't anyone run around naked for me back then?

Hua Long said: Yes, otherwise you would have married a long time ago.

Bao Zhan said: Lao Goose is very courageous. Even if I were killed, I wouldn't be able to do such a thing.

Old Goose took off his clothes one by one, and in the end he was left with only a pair of underwear. There was a bulge in his underwear. It seemed that this perverted guy had put on another sanitary napkin today. The weather was very cold, and Old Goose was shivering with his arms folded in the cold.

He said to himself, run, run around, and you won’t feel cold anymore. The old goose started running naked, and everyone applauded to cheer him. He ran around the campus, and when he stopped panting, his shoes fell off.

A white object came out of the shoe.

When Old Goose put on his shoes, a classmate looked down and said with a bad smile: Old Goose, your sanitary napkin fell off.

Hualong said: Oh, my grandson, Lao Ge, actually uses sanitary napkins as insoles.

The old goose opened his mouth and began to shout the name of the school beauty at the top of his lungs: I love you, I ran naked, I am not cold, I am very hot.

Amidst the screams of the girls, the school belle suddenly appeared. She went downstairs and walked to Lao Goose. Lao Goose was so moved that he almost cried. He opened his arms and waited for the school belle to fall into his arms. Korean dramas or love stories appeared in Lao Goose's mind.

In the romantic scene of the play, lovers hug each other and a heart made of candles is burning.

The school beauty did not hug Lao Goose. She frowned and smiled and stretched out her hand. Lao Goose was stunned for a moment, and then took the school beauty's hand.

The old goose said excitedly: I love you, and I will do anything for you. Marry me.

The school belle said with a straight face: How much is love worth?

The old goose said: Priceless.

The school beauty sneered, took out her hand and said: Shit, look at this real world clearly. Without money, it is difficult to move forward. Love in college is just a game and a dream. Break up as soon as you graduate. Wake up. Instead of sitting on your bicycle

Laughing in the back seat, I might as well cry in a BMW. When will I be able to fall in love with you when you are on the Hurun Rich List? I only love rich people. These candles and cheap gadgets will

You want to impress me. It's ridiculous. You don't even have a diamond ring and you dare to propose to me. You really insult me. When did you put a heart on a BMW?

The school beauty kicked down a few candles and left coldly, leaving the old goose staring at her back blankly.

Lao Ge returned to the dormitory and fell asleep with his head covered. The investigator reported that Lao Ge had been depressed and depressed for several days. It seemed that the words of the school belle had a big impact on him, but the guy quickly cheered up and worked hard.

Strive for scholarships.

He sighed and said to the boss of the dormitory: It's my fault, not the rejection. I don't even have a ring.

The boss of the dormitory said: Brother, you can't afford a diamond ring, so why not buy a bottle of aphrodisiac potion and put it in when you treat her to dinner? Treat me to spicy fish tonight, and I can invite the school beauty to the banquet.

Old Goose: I can cook spicy fish myself. Let’s cook it in the dormitory. The key to this dish is that the oil must be hot.

Dormitory Boss: Got it, stir-fried green onions, sliced ​​ginger, and some hot sauce.
To be continued...