Chinese authorities have declared the work of He Jiankui, who shocked the scientific community by claiming he successfully created the world’s first gene-edited babies, an illegal decision in pursuit of “personal fame and gain.” Investigators have completed preliminary steps in a probe that began in November following He’s claims and say they will “seriously” punish the researcher for violations of the law, China’s official news agency Xinhua reported on Monday. He, who taught at Shenzhen’s Southern University of Science and Technology, had led a team to research the gene-editing technique CRISPR since mid-2016 in attempts to treat cancers and other diseases.