In April 2013, OMICS received a cease-and-desist letter from the United States Department of Health and Human Services (DHHS) after a complaint filed by Ken Witwer, who said he had been fooled by OMICS's deceptive marketing. The letter alleged that OMICS used images and names of employees that either no longer worked at NIH or did not provide permission, and asked OMICS not to use the name of its agencies institutes or employees for anything other than "true factual statements".[1] OMICS responded by modifying its website and providing emails and letters from the NIH employees ostensibly agreeing to serve as editors of OMICS journals. Those employees later said that while they did agree to serve as editors, they did not provide permission for their names to be used in marketing materials; furthermore, they had not actually handled any manuscripts.[7]