Zhou Yun Miao, 47, has been transferred to police in the Chinese eastern province of Zhejiang, according to the Hanoi police.
Zhou was caught on Hoe Nhai Street in Ba Dinh District earlier this month, after three years in hiding in Vietnam.
Chinese police believed he was the financial manager of an illegal gambling ring, which recorded transactions worth nearly US$90 million between 2012 and 2014
They said in September 2013 Zhou and his accomplices fled to Vietnam, where he continued managing this ring.
The police in China's Zhejiang province issued warrants for him and three others in October 2014.