A 51-year-old man charged with one count of aggravated human trafficking and one count of promoting the sale of sexual relations after a Lawrence massage parlor raid has waived his preliminary hearing, which was set to occur Wednesday.

Chen Li

Guihong Xiao

The charges came after Lawrence police officers executed search warrants on Spring Massage, 600 Lawrence Ave., and a Lawrence residence April 28 “seeking additional evidence related to sexual crimes alleged to have occurred at the massage parlor,” Lawrence police spokesman Sgt. Trent McKinley said in April. Li and a codefendant were arrested later that day.

The codefendant, 45-year-old Guihong Xiao, of Lawrence, was charged with two counts of aggravated human trafficking, one count of promoting the sale of sexual relations and one count of misdemeanor selling sexual relations.

Charging documents allege that from Feb. 6 to April 28, Li benefited financially from participating in the “recruitment, harboring, transportation, provision or obtaining of” a woman used for involuntary sexual services, resulting in the trafficking charge.

Chief Douglas County District Judge Robert Fairchild last month sealed the arrest affidavits in the case, saying that their release may jeopardize the ongoing investigation into the case.

With the arrest affidavit being kept secret and the preliminary hearing being waived, the reasons and details behind the arrests won’t be revealed until further court proceedings occur.

Li is set for arraignment, when he will enter a plea, on June 29.

Li and Xiao are currently in the Douglas County Jail on $500,000 bonds.