Surveillance, wiretaps lead to 16 arrests in Wausau meth trafficking bust

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WAUSAU, Wis. (WSAW) -- Bond has been set at $10,000 for two people facing local charges in a major meth trafficking ring. Kai Chang, 28, and David Castillo-Lopez, 30, both of Wausau made their first court appearances Friday.

In all, 13 people from Wausau and three from Minnesota are facing charges in what federal, state, and local officials call a long-term investigation of methamphetamine trafficking in the Wausau area.
Twelve people facing federal charges include: Lisa Xiong, 31, Chong Chueneng Moua, 51, St. Paul, Minnesota, Chou Xiong, 36, Wausau, Soua Khang, 23, Wausau, Ya Yang, 31, Wausau, John Gates, 49, Hewitt, Wisconsin, Chai Thao, 34, Wausau, Sandy Vang, 49, Wausau, Ger Moua, 31, Wausau, Vang C. Yang, 26, St. Paul, Minnesota, Meng Xiong, 26, Wausau, and Dao Thao, 39, St. Paul, Minnesota.

The offense dates are from November 2018 to June 2019.

Investigators said Lisa Xiong faces the most significant charges. Prosecutors said she was leader of the drug trafficking organization. Court documents state the investigation included physical surveillance, convert camera as well as a wiretap.

Xiong was arrested during a June 13 traffic stop. Investigators said 300 grams of methamphetamine was in the vehicle.

Marathon County District Attorney Wetzsteon says four people will face local charges.

The defendants are Kai Chang, 28, Wausau, David Castillo-Lopez, 30, Wausau, Mai Xiong, 32, and Par Y. Her, 61.

Friday, Chang and Castillo-Lopez appeared in Marathon County Circuit Court. A judge set preliminary hearing dates for Oct. 14. That’s when a judge will rule if there is enough evidence for their cases to head to trial. Par Her was formally charged late last month and an arrest warrant was issued Friday for Mai Xiong.

Assistant U.S. Attorney Diane Schlipper is handling the prosecution of those facing federal charges. Marathon County Assistant District Attorney Kyle Mayo is handling the prosecution of those facing state charges.