Dr Li Changyu? Dr HenryLee, 1938 was born in Rugao County, Jiangsu Province, and moved to Taiwan Province Province with his mother when he was young. 1960 graduated from the police academy and became a policeman in Taipei. 1965 went to study in the United States, and 1975 received his Ph.D., and then he was employed as an assistant professor of criminal science at New Haven University in Connecticut. Three years later, he became a tenured professor and head of the criminal science department. From 65438 to 0979, he became the director and chief forensic expert of the Criminal Laboratory of the Connecticut Police Department. 1July, 1998, became the police chief of Connecticut. He is the highest-ranking Asian policeman in the United States. In 2000, he retired from the position of director. In September, 20001year, he was hired as honorary director of the Criminal Science and Technology Laboratory of Chinese People's Public Security University.

Li Changyu is internationally renowned for his exquisite and unique criminal investigation and forensic technology, and has been awarded the titles of "Contemporary Sherlock Holmes", "Master of Forensic Evidence", "Scientific Detective" and "Crime Buster" by the news media for repeatedly solving strange cases. So far, he has won more than 800 honorary awards and is a global legend.

Li Changyu enjoys a world reputation, but it has always been proud to be a China native. He kept his promise, so he built a good reputation. In his view, a good reputation must have the professional ethics of a criminal scientist, and it is not allowed to hold any preset position, let the evidence judge it, do not wronged the good people, and do not let the bad people go unpunished.

Dr. Qiu Xiaodong Changyu, who is internationally renowned for his exquisite and unique criminal investigation and forensic technology, has been named as "Contemporary Sherlock Holmes", "Master of Forensic Material Evidence", "Scientific Detective" and "Crime Buster" by the news media, and has become a household name in the United States. It is also a kind of competition for countries to hire experts to give lectures. So far, it has won more than 800 honorary awards. Is a legend who went from Taiwan Province to the world.

Dr. Li has participated in the investigation of more than 6,000 major criminal cases in American states and other 17 countries around the world, and often holds lectures and trains criminal investigators around the world. In addition, Dr. Li is the editor of ten professional criminal journals, and has written and published about 200 academic papers and 20 academic works. Many criminal cases he investigated have become teaching examples for the scientific and police circles of the International Court of Justice. 1In July, 998, Dr. Lee became the police chief of Connecticut. He is the highest-ranking Asian in the police field in the United States. This book mainly runs through several mysterious murders that are difficult to convict. These murders lack direct witnesses or evidence to make the suspects confess. Dr. Li solved the case with superb criminal identification technology, and brought the suspect to justice or acquitted him, which fully explained the importance of scientific case handling and showed his outstanding achievements in criminal case detection. What's more commendable is that Dr. Li described many practical techniques and methods of criminal case investigation in this book, which are beyond the reach of ordinary detective reasoning books and periodicals.

Li Changyu's resume:

1938 was born in Rugao county, Jiangsu province.

1959 graduated from Taiwan Province Central Police College.

1972 Bachelor of Criminology, City University of new york.

1974 master of biochemistry, new york university.

1975 Ph.D. in biochemistry, new york University.

1975 assistant professor of criminal science, university of new haven

1978 tenured professor at the university of new haven and head of the department of criminal science.

1979 became the director and chief forensic expert of the criminal laboratory of Connecticut Police Department.

1998 became the police chief of Connecticut.