"Show me the information. He Siye stared eagerly at the information in the director's hand, the director was a little embarrassed, after all, this is case information, and unrelated people can't read it.

"Take it. Lao Jiang sighed, he knew the anxiety in the heart of his old comrade-in-arms, there was a sentence he didn't say, as long as the fingerprints on the glass were not damaged and wiped off, they could be kept for several years, maybe this bottle was really caught by the previous criminal, but the case was becoming more and more confusing.

Lao Jiang opened the file, He Siye snatched it up, the urgency in his heart couldn't be suppressed at all, and he couldn't keep calm.

Tian Xiaonuan also came up and looked at the above content with He Siye, and the director became more and more puzzled why these outsiders were so active, but this was not in line with the rules, and he looked at Deputy Director Jiang in embarrassment.

"This case is in charge of the General Bureau, and your police station will hand over all the information to the General Bureau. ”

"Old ginger, be quick. He Siye finally calmed down, but his hand was holding the dossier tightly, and even trembled slightly, he always felt that all these things were related, but he couldn't find the key to it.

Li Ru didn't know what was going on, Tian Xiaonuan was afraid that Li Ru would tell Lin Lan and let Zhou Xian know again, and he was in a hurry about what he didn't figure out, so he asked Teacher Li Ru to keep today's matter a secret.

Tian Xiaonuan followed He Siye, and He Siye followed his comrade-in-arms Lao Jiang to return to the General Administration to delete the files of the case that year.

"Siye, I have to advise you. Lao Jiang was so excited to see his old comrades-in-arms, "The fingerprints left on the glass bottle can be kept for several years, if this thing was really touched by the criminals of the year, it is also possible, but there must be a hidden story in this case." ”

"No, you don't know, old ginger. He Siye hurriedly interrupted his comrades-in-arms.

"If it's twins, their fingerprints may be ...... Same. Tian Xiaonuan said to herself, this thing must have been touched by the man in black, and Cao Yan has some kind of connection with the man in black.

"What twin brothers?"

"Lao Jiang, I have already found out that the criminal named Tu Daliang back then also had a twin brother, who was just born and was taken away, in Nanyang City, and if they are identical twins, it is likely that the fingerprints are the same. ”

"Also, Brother He, there should be an expiration date on that medicine bottle, and it can be judged by the time, the approximate time when this fingerprint appeared. Tian Xiaonuan's mind lit up, and he suddenly thought of a way to confirm the time.

"Yes, old ginger, I want to see the evidence. He Siye became more and more excited.

Old Jiang glared, as if he had just listened to a story, and couldn't believe what He Siye said to this little girl, "You said that the criminal has a twin brother?"

"Yes, I have good enough evidence for sure, in fact, I have been looking for him privately for half a year, but this person is too cunning, and I let him run away several times. ”

"This ...... What the hell is going on?Why did you suddenly investigate the cause of Yaoyao's death again?" Old Jiang only felt that all kinds of information made his mind more and more confused.

"Brother He, don't get too excited, calm down, if there is help from the General Bureau, this person will definitely not be able to run. ”

The car drove fast, and the group returned to the Public Security Bureau, before going back, Lao Jiang had notified the archives to transfer information, and now all the things were in the conference room, He Siye also told his old comrades-in-arms in detail about the things some time ago, Lao Jiang looked at Tian Xiaonuan's eyes were a little different, he didn't expect this little girl to be so powerful.

"You have found out all the clues of this kind, Siye, don't worry, I will definitely find out this case for you. Lao Jiang also knew that there were some suspicions back then, and he hurriedly shot the criminal, and now it is very likely that there is something else to hide.

"What about the evidence of cyanide, can you see if there is an expiration date on this bottle?" Tian Xiaonuan wanted to confirm again.

Lao Jiang asked the clerk to bring the evidence, and the medicine bottle was packed in a transparent plastic bag, and Tian Xiaonuan held it up and looked at it carefully.

"The criminal's fingerprints were found at the bottom of the vial. Someone next to me explained.

Tian Xiaonuan looked at it, this medicine bottle did not have any labels, and there was no date on the bottle and lid, so he couldn't help but be a little disappointed.

"Why is there nothing in this bottle, is it a fake medicine? Tian Xiaonuan said depressedly.

"Deputy Director, this bottle should be a self-developed medicine for the treatment of skin diseases by Union Hospital, I have also prescribed it before, I can confirm it if I need to. ”

The first time I saw the man in black was Union Hospital. Tian Xiaonuan stood up excitedly and looked at the policewoman in a white coat next to her, "Trouble sister, can you check, when did this medicine first appear?"

"Yes, Xiao Zhou, if you know, hurry up and check it and report the information as soon as possible. Lao Jiang instructed that if the time when this medicine bottle appeared could be defined in terms of time, then there might be a major breakthrough.

Half an hour later, the policewoman just now came back, "Report to the deputy bureau, this drug has been developed by Union Hospital for seven years, and it only officially began to be used in the hospital in the summer of 98." ”

Tian Xiaonuan looked at He Siye, the brilliance flashed in his eyes for a moment, Tian Xiaonuan was extremely happy in her heart, although she had always believed that it was the man in black who had caught it, but now it has actually proved this matter.

"Siye, there is really a problem. "He Siye's girl died in '97, the offender was shot at the end of '97, and the criminal's fingerprints appeared on the medicine bottle in '98, which means that the criminal's twin brother is suspicious.

"Wanted, wanted nationwide. Lao Jiang immediately went to the director and asked for a national wanted warrant, but He Siye sat on a stool with tears in his eyes.

"Brother He, don't worry, find the man in black, maybe the problem back then can be solved. Tian Xiaonuan can understand the excitement of a father overturning the case for his dead child, and the pain and self-blame for so many years, maybe the truth will be revealed soon.

"Why did Cao Yan have a connection with the man in black, and how could Cao Yan have such a dangerous thing, she definitely didn't commit suicide, so what can she do with this?

Tian Xiaonuan couldn't figure it out, Lao Jiang came back from errands and persuaded He Siye a few words, He Siye's car was in the compound of the General Bureau, he calmed down and sent Tian Xiaonuan back to school.

"Brother He, don't be too anxious, I've been waiting for so many years, and it's no longer this time. After getting out of the car, Tian Xiaonuan persuaded He Siye again.

At this moment, He Siye seemed to have fully recovered, he nodded and said: "Don't worry, I can afford to wait, and you should also pay attention, be careful of the retaliation of Cao Yan's parents, and if it doesn't work, ask for leave to avoid it." ”

He Siye learned the identity of Cao Yan's parents, and was afraid that they would not give up.