Puyallup man faces federal drug charges after agents seize more than 18 pounds of meth

A Puyallup man has been indicted with three federal drug crimes after investigators found large amounts of methamphetamine at his home and a Lakewood warehouse under his control.

Robert Duane Knowles is to be arraigned Monday in U.S. District Court in Tacoma.

A grand jury has charged him with one count of conspiracy to possess meth with intent to distribute and two counts of possession of meth with intent to distribute.

Knowles was arrested in June after an investigation by the Thurston County Narcotics Task Force, court records show.

The investigation began after authorities raided the home of a different man and found meth and heroin. That man identified Knowles as his dealer, court records show.

Task force detectives then raided Knowles’ home in Puyallup and his warehouse on Tacoma Mall Boulevard in Lakewood.

They allegedly found about 16 pounds of meth at the warehouse and another two pounds at his home, court records show.

Task force members also seized more than $350,000 in cash from Knowles’ mother, who told them it was from her son’s drug sales, the records show.