These are very well-organized criminal enterprises, said Quang Ninh provincial law enforcement officials that made the busts at a June 9 news conference.These individuals are responsible, we believe, for importing enormous amounts of drugs including heroin, crystal meth, ketamine, marijuana and drug paraphernalia into Vietnam, they noted.In connection with the arrest of the 16 suspects law enforcement authorities seized untold amounts of crystal meth, three kilos of ketamine along with an estimated 100 boxes containing shisha and other items including many weapons.