In the majority of cases, minors were kidnapped or stolen, but there are also numerous cases of couples who had a child and that, because of the one-child policy, decided to sell it to retry beget a son. Children with those who traded these networks are bought by people from other provinces who want a child or couples who cannot have it by their own means. These children, according to the NGO Baby Come Home, are treated as children of her own. Indeed, sometimes their own families and neighbours unknown non-biological children. Also, says that the majority of these minors were abducted when they were practically babies and have developed emotional ties with their captors. According to the China Daily newspaper there are children to return with their parents forced them to sign agreements guaranteeing that they can return to live with their captors at least a few months of the year.

Another lucrative business and that occurs is the sale of blood. The increase of demand and scarce sanitary controls have caused the proliferation of more than three million of professional donors, increasing the risk of the spread of the virus of the AIDS is speaking that the Bodies bodies could come from the black market Noticias24.com about it says, allegations that the Bodies come from a rough black market in China date from 2005 and have continued, in American media, at least until February 2008. Once they began to sound alarms for the debut of BODIES in the United States, in 2005, both the General Prosecutor of Florida as the of the State of New York and the U.S. Congress gave ongoing investigations that could not get that Premier Exhibits, company headquartered in Atlanta, Georgia that moves the sample by the worldcertifying the origin of the bodies in question. According to a report by ABC News, who provides bodies to the organisers is not the laboratory of a medical school in Dalian, as first claimed the organizers of Bodies, but a private company called Dalian Medi-Uni Plastination Labs, whose founder is a Professor of the University of Medicine of Dalian who sold his stock package (which reached 70%) because of the bad reputation of the activity performed. .