In order to meet the investigation requirements of customers Vietnam and international clients. We established detective firms Luong Gia. The director is Mr. Luong Duy Hien, Previously his family worked at the U.S. Embassy. He was sent by the government for investigation training and learning in the United States to work in Vietnam. With the support from family and working in for the government helped him assert himself in the detective environment in Vietnam. He is the first to be allowed to use in investigation and his company is the first and only company that Vietnamese government agrees to license as a company working for the government in investigation field.