KIMBERLY, WI (WTAQ) - A case of possible human trafficking is being investigated in the Fox Valley.
Fox Valley Metro police say it's a rare case for their department, so they're getting help from state and federal authorities.
"On January 15, we did execute four search warrants at three different residences," says Officer Scott Van Schyndel.
Those residences are in Kimberly and the town of Harrison. According to search warrants, a Fox Valley restaurant owner is the suspect.
According to FOX 11, the suspect listed in the search warrants either had at one time owned or rented each of the three residences searched, as well as a Chinese restaurant in Kimberly.
According to the search warrants, the suspect is accused of smuggling a woman into the country, forcing her to work at the restaurant without pay and beating her.
"We're sorting through the evidence currently and we're also still speaking with more people involved in the case," said Van Schyndel.
Some of that evidence includes bank statements, immigration documents and tax forms.
"There are possible state and federal charges," Van Schyndel said.
Police will meet with the Outagamie County District Attorney's office next week to decide on what, if any charges may be filed and if they will be state or federal.