Huang Longge: a "detective" hero who broke through DNA technology

Personal business card

Huang Longge, a first-class superintendent and a fourth-level supervisor of police technology, joined the police in 2011 and entered the Institute of Forensic Science and Technology of the Zhoukou Municipal Public Security Bureau in June 2012, mainly engaged in forensic DNA identification technology research and criminal case inspection and appraisal work. Since 2020, he has used DNA technology to help detect several major cases, providing strong scientific and technological support for the fight against criminal offenses.

He has been awarded the second class merit once, the third class merit once, and was commended once, and in 2020, he was selected into the national criminal technology young talent pool.

Find your way home for abducted children

On February 3, 2020, Huanglongge received a case of a child abducted for 26 years. In order to help the parties find their relatives, for half a month, he has been hiding in the unit, eating instant noodles when hungry, and sleeping on the table when he is sleepy. By constantly changing the way of comparison and constantly screening for suspicious conditions, he finally found clues in the more than 60 copies of data that needed to be manually compared, allowing long-lost relatives to be reunited.

Since March 2020, relying on the national DNA database, Huanglongge has successfully found relatives for 6 lost people. During this period, he also used DNA technology to directly solve a series of major and important cases, fully demonstrating the great role of DNA identification technology in the detection of criminal cases.

Use trace amounts of biological evidence to solve major cases

On May 22, 2020, several locomotive robberies and robberies occurred in Shenqiu County, and on the 23rd, two more robberies and robberies occurred. On the 23rd, the investigators sent the physical evidence of the Xiaoxinying Bridgehead case in the northern suburbs of the north on the 23rd - the mobile phone left at the scene after being robbed by the suspect to the DNA laboratory for testing. Huang Longge extracted trace amounts of biological evidence from the suspect's touched mobile phone and tested it simultaneously in a variety of ways, and finally successfully split the suspect's DNA.

On December 3, 2020, a jewelry store in Shenqiu County was stolen, and the stolen items included gold necklaces, bracelets, earrings, pendants, cash, etc., with a total value of more than 900,000 yuan. Huanglongge conducted a detailed survey of the site and extracted trace amounts of biological evidence at the edge of the counter. Back in the lab, Huang Longge worked overnight to examine trace amounts of biological evidence and finally successfully tested a man's DNA. As the investigation progressed, both suspects were locked. On December 6, 2020, the special case team arrested two criminal suspects in Ningbo City, Zhejiang Province, and all the stolen money and stolen goods were recovered.

Huang Longge taught the experience summarized in his daily work to the county-level units, carried out training on dna trace physical evidence extraction, improved the extraction rate and detection rate of biological evidence of the city's public security organs, and laid a solid foundation for the detection of the case.

Use databases to invent techniques and tactics

On October 11, 2020, the safe in the financial room of a company in the jurisdiction was stolen, and more than 170,000 yuan of cash disappeared. After huanglongge conducted a detailed analysis and judgment on the scene, several copies of the biological test materials of key parts were extracted. He successfully used the Y database cross-check method and formed a set of technical tactics. With this set of techniques and tactics, in recent years, Huanglongge has assisted in the detection of a large number of criminal cases such as theft, robbery and homicide, and provided strong background data support for county-level technical and investigation departments. He also assisted the public security organs of other provinces and cities in solving several backlogs of murder cases, which were unanimously praised by fraternal units.

Since 2020, Huanglongge has used DNA technology to detect several major cases, providing strong scientific and technological support for the city's crackdown on criminal crimes. Since 2011, he has handled more than 60,000 specimens and issued more than 650 inspection certificates. He always adheres to his original intention and serves the people. His pragmatic work attitude and diligent work spirit have been unanimously affirmed by his detachment and grass-roots team.

Source: Henan Legal Daily