Early this morning, Mr. Hu, a 63-year-old citizen, came to the Criminal Investigation Corps of the Shanghai Municipal Public Security Bureau. He sat in the conference room, anxiously waiting for the moment he had been looking forward to all his life.
On the other hand, the brothers and sisters of Mr. Fang Lao, a person from Jurong, Jiangsu Province, also rushed from the local area to Shanghai accompanied by his family. At 10:30 a.m., when they stepped into the conference room, Mr. Hu, who had been waiting for a long time, looked at the closest strangers who appeared at the door, and tears filled his eyes.
In addition to the tears of joy and tears, there are also haunting hugs. Separated for 63 years, it is also the reunion of a family that has been separated for the longest time since the "reunion" operation of the Ministry of Public Security. There is the power of scientific and technological progress behind this, and it is even more thanks to the perseverance of the public security police.

Pictured: Seven brothers and sisters were separated for 63 years, and a dynasty was finally reunited Xinmin Evening News reporter Zhang Long/Photo (the same below)
From the beginning of his understanding, Mr. Hu knew that he was adopted and that finding his relatives had always been his wish. Over the years, he inquired about his origins, used many methods, spent a lot of time, but never followed. From Qingsi to Baishou, the matter of finding relatives has become a knot in Mr. Hu's heart, and whenever he thinks about it, he is always full of regret and pain.
In July, the turnaround finally arrived. Mr. Hu learned from news reports that the Shanghai police can help citizens collect blood for free and compare them across the country to find relatives. Although he had experienced many years of disappointment, at that moment, a ripple of hope rekindled in his heart.
With the mentality of trying it out, Mr. Hu found the criminal investigation detachment of the Huangpu Sub-bureau to collect blood and search for relatives. The Huangpu criminal police registered information for Mr. Hu, collected blood samples, and submitted them to the national anti-abduction database for comparison. But the miracle didn't happen right away.
At the end of September this year, the Ministry of Public Security launched the "Reunion" operation forensic technical battle. This is a nationwide campaign in which public security organs across the country focus on cracking the backlog of child trafficking cases and finding abducted children who have disappeared since the reform and opening up. Shanghai forensic technical experts used national resources to re-analyze and compare the samples.
This time, through patrilineal comparison techniques, the Shanghai police found that Mr. Fang and Mr. Hu in Zhenjiang, Jiangsu Province, belonged to the same family lineage. Mr. Fang is 42 years old this year, which seems to be a generation younger in terms of age, but he and Mr. Hu are likely to have a paternal relationship.
This discovery made the police very excited, and immediately began to investigate. When he first received a call from the police, Mr. Fang thought it was a telecommunications fraud and refused to cooperate. However, the persistent communication and patient explanation of the police finally impressed Mr. Fang, who promised to go home and ask his relatives about the situation.
After questioning his family, Mr. Fang was surprised to find that there was indeed something really going on: a younger brother in his father, Mr. Fang's family, was sent to a local orphanage due to the difficult conditions at the time of birth, and then lost contact. All along, they were looking for this younger brother.
After obtaining this clue, the police immediately traveled to Jurong City, Jiangsu Province, and found Mr. Fang Lao, 69, and his 5 brothers and sisters. Of them, the oldest is 82 years old and the youngest is 58 years old. The police conducted a large number of visits to investigate and verify, and at the same time collected 6 blood samples from 6 people and brought them back to Shanghai, which were compared and tested one by one.
At the beginning of October this year, the good news came: the comparison results confirmed that Mr. Hu and Mr. Fang Lao and 6 other people were biological brothers and sisters! The police were very excited, and called to inform both sides one by one, and everyone was very excited and strongly demanded to recognize their relatives immediately.
This morning, in the conference room of the Criminal Investigation Corps of the Shanghai Municipal Public Security Bureau, the brothers and sisters who have been separated for 63 years are finally reunited! At that time, the hugs and tears of 63 years left the people present unmoved. Mr. Hu said movingly: "Thank you to the Shanghai People's Police for making up for the biggest regret of my life! At noon, the Shanghai criminal police will also invite the brothers and sisters to eat a reunion dinner, and the canteen of the Criminal Investigation Corps will also specially prepare tangyuan. Sweet tangyuan carries the blessing of reunion.
According to Zou Wei, political commissar of the Criminal Investigation Corps of the Shanghai Municipal Public Security Bureau, since the beginning of this year, the Shanghai police have fully thrown themselves into the "reunion" operation of the Ministry of Public Security to crack the backlog of abducted and trafficked children, arrest criminal suspects, and comprehensively find missing abducted children. To date, it has helped reunite 56 separated families like Mr. Hu.
Shanghai police remind that whether you want to find a long-lost child or find your biological parents, you can go to the nearest public security organ to register relevant information at the free blood collection point and compare the blood collection. The police hope to help all the world's lost children find their way home.
Related: What is paternal alignment?
When it comes to patrilineal comparisons, the most famous case is the "Silver Case".
On August 26, 2016, the serial murder case in Baiyin City, Gansu Province, which had been hanging for 28 years, was solved. The key clue to solving the case comes from patrilineal comparison.
According to the "Silver Case" police at the time, through data comparison, the police found that the DNA-Y chromosome characteristics of a local detained man with a high surname were similar to the biological test material left by the suspect in the "Silver Case", and after review and examination, it was confirmed that the man with the high surname and the murderer of the "Silver Case" were male members of the same family. The police launched a family investigation, sifted through the direct males of the family one by one, and finally determined that the distant nephew of this person, Gao Chengyong, was the murderer of the "silver case".
According to experts, the DNA-Y chromosome is passed on in one direction between male father and son and paternal line. All male individuals in the same paternal line, including brothers, fathers and sons, uncles and nephews, cousins, and grandchildren, have homologous Y chromosomes.
Chief reporter of Xinmin Evening News Pan Gaofeng