A joint investigation by the Lehigh County Drug Task Force and South Whitehall Township police has resulted in prostitution and related charges against six women.

The Federal Bureau of Investigation and the Department of Homeland Security assisted in the investigation into illegal activities at the Aries Spa at 3333 Hamilton Blvd.On Thursday, detectives charged the following women with prostitution and related offenses: Xu Mya Gui Yue, 51, Jinyu Candy Yang, 43; Kim Young Soon, 55; Sun Mi Gege Lee, 36; and Xian Sara Shun Zi, 37; all of Queens, N.Y.; and Pun Son Hutcheson, 61, of Vernon, Conn. The charges against five of the women are misdemeanors of the third degree.Hutcheson is charged with a felony for promoting prostitution.Detectives executed search warrants at the spa and seized $12,000 in cash, condoms, various documents, cell phones, a tablet and a lap top.According to court records, from 2008 to 2014, the South Whitehall Township Police Department received sporadic complaints about the Aries Spa, including men entering and leaving the back of the building, which is located in a strip mall setting, possible sexual activity occurring inside, and female employees living at the establishment.Police conducted periodic surveillance of the business between 2008 and 2014 but were unable to establish probable cause to obtain a search warrant.In fall of 2014, police were able to cultivate confidential informants who provided sufficient evidence to permit obtaining a search warrant.The investigators' reports detailed massages and sexual acts that were performen in September 2014 and how much they paid employees of the spa.Detectives did Internet searches and found sites that included customers' testimonials that described sexual acts that occurred in the spa.In November and January 2014, detectives did additional surveillance and interviewed unnamed patrons of the spa who told them that they paid for sexual acts at the spa.