With the full cooperation of the 6th Headquarters, a total of 22 burglaries were found in Bunkyo Ward, Chiyoda Ward, and Minato Ward. A common feature in these cases is that most of the homes that have been burglary have been uninhabited for a considerable period of time, and when the victim finds out that he or she has been burglarized, he or she is unable to obtain evidence because of the time of the crime. So most of these cases are unsolved. For these cases, the police can only hang up for the time being, and wait until they find relevant clues in the future to continue to follow up.

Hayashi made a comparison between the location of these cases and the area where Kandagawa Printing Advertising Co., Ltd. distributed its advertisements. As he envisioned, the stolen homes were all located within the business area of Kandagawa Co., Ltd.'s advertisement.

What is the probability of 22 thefts without leaving any evidence? If the probability of a perfect theft is 1 in 30? Then the probability of 22 burglaries leaving no evidence is 1 in 30 to the power of 22. This probability means that this is something that is not likely to happen.

So when Lin Xiuyi and his colleagues in the Sixth Headquarters examined all the evidence in these 22 thefts. They effortlessly come up with a whole bunch of potential conviction leads.

For example, at a house in Akasaka, a leaflet printed by Kandagawa Co., Ltd. was found at the scene of the theft, and this leaflet is now kept in the evidence room of the Metropolitan Police Department. Soon someone took this leaflet to the forensics class to apply for fingerprint identification.

For example, in the courtyard of the site of the theft in Koishikawa Town, several clear footprints were found, and a vague mark was found in the middle of the footprint. At the time of the investigation of this case, because the mark had been worn out, it was impossible to give an exact pattern of what forensics class and science research could not give on it. And Lin Xiuyi, with a new investigation idea, immediately linked this pattern with the shoes distributed by Kandagawa Co., Ltd. The employees of Kandagawa Co., Ltd. are on the go all year round, so their shoes are made to order by the company. So it's not surprising that there is a company pattern on the sole.

In addition to this, clear tire marks have been found outside the Kasugacho crime scene, and some climbing shoe prints have been left on the walls. These things were originally isolated. This is because from the point of view of theft, the locations of these crimes are very scattered, although each case takes place in an uninhabited house. But this is not a distinctive feature of crime, and few burglars dare to commit theft when there is someone in the house. In addition, the items lost at the scene did not have any significant characteristics, some cases lost valuable jewelry in the house, some lost designer clothes, bags, and some mainly lost cash. In short, there is no significant pattern in these cases, and there are six departments in charge of theft cases in the Sixth Headquarters, each with an average of a dozen police officers, and only one or two of them will be responsible for one of the cases.

With so many cases and so many police officers in the hands, if it weren't for Lin Xiuyi's preconceived consideration from the perspective of serial theft cases from the beginning, it would have been impossible to combine these cases. The analysis of collusion cases is the basic skill of criminal police. You must know that Lin Xiu was also an expert in solving cases in the criminal police brigade in the past, and China's criminal police brigade will not divide various cases in such detail as the Metropolitan Police Department. China's criminal police are all-rounders, and usually murder, robbery, rape, and even drug-related cases are basically handled by the same criminal police brigade if they occur in the same jurisdiction. However, in Tokyo, different headquarters are in charge of different cases under the search section, and some are in charge of homicide cases, while others are in charge of theft cases. Lin Xiuyi's Sixth Headquarters 2 Department is specialized in handling sexual crime cases. It has become a fixed procedure of the Metropolitan Police Department to deal with different types of cases according to the division of labor. But this time, the Shenmu Police Department suffered the loss of the Metropolitan Police Department's division of labor too finely.

I saw that 22 cases were found at once on the side of the sixth headquarters, and many cases are still being screened. The people sent by the Shenmu Police Department felt that one head and two were big, they quietly pulled Lin Xiuyi aside, and asked Lin Xiuyi in a low voice: "Police Department, there are so many cases, it would be good for us to read all the information within 48 hours, this ......"

"Don't worry, didn't you find tire prints and shoe prints just now? If it can be confirmed that these tire prints do match some of the tire marks found in these 22 thefts, we can continue to detain the suspect Ishihara Hayato for theft, and we can go to his house and the place where he used to work, to see if there are any shoes he has worn. Bring it back for shoe print footprint analysis, I don't believe I can't keep him this time......" Lin Xiuyi confidently instructed his subordinates of the Shenmu Police Department.

"Hello!" Shenmu's subordinate responded excitedly, and then said goodbye to Lin Xiuyi to collect evidence.

As soon as Lin Xiu turned around and walked into the office, a police department who served as the head of the department handed Lin Xiuyi a cup of coffee, and said to him happily: "Xiu Yijun, you have helped us a lot this time, if these 22 cases can be solved at one time, our sixth headquarters will definitely impress Section Chief Sato!"

"There, seniors, it's just my luck this time, you usually have so many cases to deal with, if it weren't for my favor, then you would have the time and energy to go through so many case files? After all, I want to thank you very much! It's all thanks to the great help of my seniors, I am really grateful for causing so much trouble to everyone!" Lin Xiuyi bowed deeply to all the policemen present after speaking.

Now the six departments in charge of theft and search in the sixth headquarters no longer regard the re-examination of the case file as an extra job to help Lin Xiuyi, but they are desperate to find a few more similar cases, if these unsolved cases can continue to be merged into the series of robberies of Ishihara Hayato and Shin'ichi Nakamura, it will save a lot of things.

An hour later, the original 22 thefts had increased by four, making a total of 26. These case files are now all placed on a separate table, and Lin Xiuyi and the rest of the police department, all of whom are gathered around this table. 26 thefts, nearly 1,000 pieces of evidence found at the scene. As soon as Lin Xiu swore that if he couldn't pry open Ishihara Hayato's mouth like this, he ate all the case files on this table.