1 minute to solve the case

Chapter 38 Mature Wisdom (4)
It was one of those rare nights of thunder in spring, when a bachelor mystery novelist was stabbed in the back and died while writing at home.

When the body was found the next day, the fluorescent desk lamp on the desk was still on. It was a simple fluorescent lamp without a starter.But strangely, a flashlight on the desk was also on.

"Last night, the apartment was powered off for about 30 minutes, so the victim must have been killed while writing a novel by the light of a flashlight during the power outage," the administrator said. "No, the murder happened after the call. The murderer pretended to be committing crimes during a power outage, and then turned on the flashlight on purpose, and then fled." The criminal police made a judgment after glancing at the scene.

So where is the evidence?
Simple fluorescent lamps do not have a starter, and if they are activated during a power outage, they will not turn on automatically when the power comes in.

copyright heir

The author Emily died last month, and the publisher stopped paying royalties for her book "Moscow Memories".Emily talks about her husband's death in 1910 in her book, when someone claiming to be Emily's husband came to claim the book with a Russian passport, birth certificate and marriage certificate copyright fees.

At the publisher's request, Detective Agency Director Bill spoke to the man who claimed to be Emily's husband as follows:

"Your wife talks about you dying of pneumonia in her book, and it's incomprehensible that you didn't let her know you were alive again." "Six months into our marriage, I got measles, not pneumonia, and the hospital Confused me with someone else, and as a result, news of my death came out, and I didn't want to correct this misinformation." "Your English is good, I think you must have traveled a lot in the past few decades, and you have gained a lot in your career. with great success." "You are right, I was quite successful in the textile trade. In the second year after the news of my death I sold my firm to a large Leningrad firm, retaining the shares. Since then, I have traveled all over the world.”

After the conversation, Bill told the publisher: "To report to the police to check his papers, which I think are forged."

Why did Bill come to this conclusion?

Bill found a flaw in his statement that he had sold the firm to a large Leningrad firm the year after the death had been reported, other than to say why he "didn't want to correct the misrepresentation of the death". In 1911, Leningrad was still called St. Petersburg.

Two Plates of Strawberry Shortcake

Female model Allen is having a hot affair with a swinger from a certain country in the Far East these days, and the two are inseparable all day long.Allen coveted the son's hoard of jewels and wanted to keep them for himself.But the beauty also found out that the young man named Abuka was greedy for food more than lust, so she planned to do something with the food.

That night, the hotel staff brought coffee and strawberry cake to the pair of wild mandarin ducks.When Abuka was about to swallow his own plate of strawberry pie, he burped, rolled his eyes, and fell staggeringly from his chair. Fifteen minutes later, Allen called the doctor and alerted the famous detective Bill who was staying in this hotel.Allen invited Bill into Abuka's room, and Abuka was still in a coma.Allen told Bill that he ate his plate of strawberry shortcake before losing consciousness.Maybe Abuka's plate was laced with too much drug.As she spoke, she showed a mouthful of white and shiny teeth.

After the police arrived, Detective Bill told the sheriff, "If Abuka's jewelry is stolen, Alan is the most likely suspect."

Bill thinks Ellen didn't eat the drugged strawberry pie, so she was sober at the time of the theft.If she had eaten strawberry pie, her teeth would not be so white and shiny after 15 minutes, but red from eating strawberry pie.

full of mistakes
Tom is a student at the police academy.He wrote a case titled "Drug Traffickers".The content is as follows:
One day at noon, the sun was shining in the sky, leaving long tree shadows on the lake.Mate and Shado pushed a pre-prepared boat into the lake.They drifted along the tide to the center of the lake, which is the boundary lake between two neighboring countries, and the water source is replenished by underground springs and will not dry up.Ma Jie and Sha Duo used this boundary lake many times to engage in smuggling.

They fished in the middle of the lake, and now and then they caught some sea trout, which they gutted and bagged.As night fell, it was dark all around, and the two quickly rowed the boat to the opposite bank and met with the respondent.Then they dragged the boat ashore together and turned it upside down, with a watertight pot in the bottom.They put little packets of drugs inside.They did so well, and just 10 minutes after midnight they started paddling back, landing half a kilometer north of where they usually hid their boats.The two took out 100 packets of drugs and divided them equally. Five minutes later, a customs patrol spotted the boat in the middle of the night without raising the slightest suspicion.But when the two returned to town, they bumped into patrolling police, and Mate and Shado were apprehended.

After reading it, the instructor laughed and said, "There are many mistakes in this test paper. Tom should get a grade."

How many mistakes are there in this test paper?
There are four major errors in the test paper:

1.At noon, when the sun is high in the sky, there will be no shadows, no matter how tall or short the trees are.

2.A lake supplemented by underground springs has no tidal currents.

3.Sea trout are marine fish.

4.It was "just after 10 minutes after midnight" when the drug dealers began to row back, so there was no chance that the patrol would spot their boat on the opposite bank at "midnight."

double assassin
On Sunday, Cole, the general manager of a certain company, was walking on the tree-lined path in the park.Suddenly, a young and beautiful woman greeted him.Cole asked, "Miss, who are you?"

The woman said coldly: "I am an assassin!"

Cole's face turned pale, and he blurted out nervously: "Ah, are you sent by that kid?" and begged for mercy.The woman said: "Please don't get me wrong, I'm here to help you. Is your opponent the manager of Company H?"

"Yes, yes, in terms of business, he is my biggest enemy. I wish he would die soon!" The woman said in a conferring tone, "Leave this matter to me! Please rest assured, I want Let him die silently--let him die of sickness. As for the method, you'd better not ask. And, pay after you kill him, no advance payment?"

"Okay! After it's done, I'll reward you with a lot of money!" Three months later, Cole heard that the manager of Company H died of a heart attack and the treatment failed.Then, on a Sunday morning, on the same boulevard, Cole met the woman again, he paid the reward exactly, and the woman walked away with light steps.

How did that woman make the manager of Company H die of illness and get a considerable amount of remuneration?
This woman is a nurse in a certain hospital. By virtue of her special status, she knew that the manager of Company H had a heart attack and knew that he could live for three months at most. was kept in the dark.

library theft
A theft occurred at around 9:6 p.m. in the city library. The drawer of the cashier was pried and more than [-] yuan in cash was lost.

The officer on duty stated to the police: "At 6:[-] p.m., we received a notice from the power supply bureau that the power supply in this area was cut off due to maintenance of high-voltage wires. For this reason, I patrolled more vigilantly. When I went to the ground floor, I opened the door with a key and entered the hall for borrowing books. At that time, I suddenly heard a slight sound at the cash register, and someone was prying the drawer. I yelled and rushed over, but the thief ran away nimbly."

"We arrived as soon as we received the call from the officer on duty." The curator and the security director said in unison. "And what about her?" the policeman asked, pointing to a woman. "She is the cashier, and the duty officer happened to meet her when he chased after the door of the building." The security director said with a tense face.

"I, I just passed by when I was shopping, who knew that a theft happened." The cashier explained.

At the scene of the crime, the cash collection counter is in the left corner of the hall, which is closed.Inside the counter were four desks, and several drawers were unlocked.There were no prying marks in the drawer where the cash was stored. The policeman opened the drawer to look, and said to the curator, "I know who the thief is."

Can you guess who the perpetrator is?

The drawers were not locked so there was no need to pry them open, the attendant was lying, he was a thief.

gambling
Jason is a habitual thief, and in his field of theft, he can be called an expert.In Jason's view, there is no safe that he cannot open, and opening the latest safe is the most challenging and fun thing. Only when opening the lock will his scattered thinking be highly concentrated on one point .

On this day, Jason was wandering the streets.Suddenly he heard someone calling him behind him.He looked back and saw that it was Inspector Hamm of the police station.

"I quit a long time ago," Jason said, waving at Inspector Hamm. "I'm an honest businessman now."

The detective shook his head and said, "I paid you to open the safe today."

Jason was a little puzzled, and the inspector continued: "That's right, a certain multinational corporation ordered three safes for storing confidential documents. The person who made the safes boasted that as long as someone can open these three safes within half an hour, I am willing to pay him [-] pounds. It just so happened that I ran into you when I came out. You are a veteran in this field, and [-] pounds is not a small amount!"

Hearing this news, Jason was also quite tempted by the 10 pounds.Because he is absolutely confident in his lockpicking skills. Since his debut, he has never encountered a safe that he could not open within 2 minutes. Most of the safes that look very strong can be easily handled by him in just one or two minutes. .More importantly, he wanted to see what the latest safes looked like.So he came to the police station with Inspector Hamm.

In the secret room of the police station, three safes made of special steel and shining with metallic luster were neatly arranged on the desk in the office. The sophisticated induction locks and intelligent encrypted passwords seemed to be completely flawless.

Jason warmed his hands by the fireplace and started working immediately, while the manufacturer's representative started the timer with a plexiglass hourglass.Jensen had trouble opening the first safe. He spent 15 minutes trying 20 different methods before opening the safe with the 21st method.Thanks to his experience, it only took him 7 minutes to open the second box.At this time, the manufacturer's representative signaled him to pause.

"The reason why I ask you to stop is to tell you that the reward is in the third safe." He said eccentrically, "Now, start the last attack, you have 8 minutes left." Then, he moved the hourglass When we got to the fireplace, we started to count again.

With the two experiences just now, Jason already knows this kind of safe well.He successfully unlocked the password, opened the third safe, and saw the thick cash inside.

"What a superb skill! Dear Jason, I admire you, but you are overtime." The manufacturer's representative said.Jason looked back, and the scale of the hourglass showed 8 minutes and 1 second!He couldn't believe his eyes at all!

Suddenly, Jason remembered something and understood the reason why the hourglass was running fast. He said loudly to the manufacturer's representative: "I already know that you have tampered with it, and the reward is still mine."

After hearing this, the manufacturer's representative turned pale and had no choice but to pay Jensen the remuneration.Do you know what he did?

The cunning manufacturer representative took advantage of the principle of thermal expansion and cold contraction to make the fine sand in the hourglass fall faster.After the hourglass is placed next to the fireplace, it expands when heated. Although it is only a small change, it is enough to increase the amount of sand passing through the small hole, thereby increasing the timing.

Therefore, Jensen's actual time spent is less than 8 minutes, and the fee is still his.

fingerprints on the cup
Kelly is a well-known independent writer. She not only writes well, but also provides beautiful illustrations for the wonderful text.As a result, her book became very popular, ranking first on the bestseller list for five consecutive months.But because the publisher bought the copyright at a very low price, she could only watch her book sell well, while a lot of money fell into other people's pockets.

On this day, Police Chief Mutter told her that Miss Xinya, the copyright agent, was killed in the apartment two days ago. The murderer shot ten times at her, and Miss Xinya died on the spot.According to the investigation, the people who came into contact with Miss Xinya that night included Kelly, the head of the printing factory, Miro, and Xinya's ex-husband Louison. The police invited them all to the police station to assist in the investigation.

When Kelly heard of such a tragedy, she was so frightened that she burst into tears.She told Sheriff Mutter that she went to Xinya's place at around eight o'clock that night, and the two discussed re-signing the tax contract. Xinya also poured her a glass of iced truffle wine, and about 5 minutes later she left.

Milo complained a bit, and he seemed agitated, emphasizing his complete innocence.He went to Xinya's house around nine o'clock that day, intending to ask Xinya for the money he owed to the printing house, but Xinya just poured him a glass of iced soda politely, never mentioning the matter of repaying the money.He left cursing in a fit of rage, as the guard downstairs at the door could attest.

Although Luisen divorced Xinya because of property issues, they were still good friends after the divorce. After hearing the news of Xinya's murder, Luisen was devastated.He recalled that Xinya was in a bad mood that night. He drank a glass of water, comforted her and left after a few words. Unexpectedly, such a tragedy happened. At this point, Louison burst into tears.

Sheriff Mutter looked at the three people in front of him who might be the murderer, unable to make a judgment.On the one hand, they didn't have enough motive to kill, and on the other hand, they didn't leave any clues at the scene. The murderer even took away the bullet casings, and even the used glass had Xin Ya's fingerprints alone. Although the fingerprints were very clear, But it didn't help the case much.

Sheriff Mutter had to ask the famous detective Green for help. After hearing the case, Green pondered for a while and asked, "I remember that the night when the incident happened, the weather was very hot, about 37 degrees Celsius, wasn't it?"

Sheriff Mutter recalled that it was indeed the case.Green continued to ask: "Are the victim's fingerprints on the cup very clear? If so, the murderer has been found." Sergeant Mutter is a little puzzled. Can this alone identify the perpetrator?
How did Green find the perpetrator?

According to the three people, Kelly and Milo both drank iced drinks, while Louison drank plain water. In hot weather, iced drinks will quickly form a layer of dew in the cup, so Miss Xinya stays calm. Fingerprints should be fuzzy.Therefore, the murderer was Luisen who drank white water. What he drank was a normal temperature drink, which had no effect on the glass, leaving clear fingerprints on the glass.

farm robbery
On a night full of moonlight and few stars, people have already fallen asleep.A masked robber secretly broke open the window of the farmer's house and jumped into the house.The farmer and his wife woke up. The robber threatened them with sharp knives and tied them up. Then he started to rummage through the cabinets, took all the valuables, and jumped out of the window to escape.

After 10 minutes, the farmer and his wife tried their best, finally broke free from the rope, and immediately called the police.After Sergeant Charles inspected the scene, he believed that the criminal was familiar with the situation of the farmer's house and must be an internal employee of the farm.He called "Harry" right away.

"Harry" is a well-trained police dog, tall and handsome, mighty and intelligent.Harry's sense of smell is particularly sensitive. After smelling the smell left by the bad guy, he will firmly remember it. After smelling the bad guy's footprints, he will lead the police to follow him all the way. If he catches up with the bad guy, he will yell three times.Generally speaking, timid criminals will be terrified when they see Harry, and they will obediently raise their hands and surrender as soon as their feet soften; The police came to arrest the criminal.

After Sergeant Charles brought Harry to the crime scene, he patted Harry on the head to let him smell the rope that the criminal had taken. He sniffed and then barked, indicating that he had remembered the smell of the criminal.The sheriff whistled, and Harry rushed out like an arrow!
One person and one dog turned several corners along the field path and followed them all the way to the cattle farm. Harry sneezed several times suddenly, and then ran towards the cattle on the grass.At this time, its speed slowed down, turned eastward, heard westward, showed hesitation, and finally stopped.Sergeant Charles knew that the perpetrator was too cunning and deliberately prevented the police dogs from smelling him.However, there is a way to find the culprit.

Why can't the police dogs smell the criminal, but the sheriff can find the criminal?
The criminal went to the cattle farm on purpose and stepped on the cow dung. The smell of cow dung will irritate the police dogs, thus covering up the criminal's smell. Sheriff Charles only needs to check the soles of the farm employees' shoes to see who's soles are stained with cow dung. Find the perpetrator.

silent proof

On a cold night, with light rain, the whole street looked deserted.A road cleaner was riding his bicycle home from get off work. He came to an intersection, saw the green light, and rode across the road.Suddenly, a white car jumped out of the road on the left, saw that the red light did not stop, and still drove over. Knocked down the cleaner with a "bang", and fled quickly.

Soon, the cleaner was sent to the hospital by passers-by. Fortunately, someone wrote down the license plate number of the car.Sheriff Charles found the owner of the white car in the early morning based on the license plate number.His name was Lorraine, and he was a young man. When Sergeant Charles found him, he hadn't gotten up yet, and opened the door with his overcoat on.

(End of this chapter)