Andrew Duncan Irving, 31, was arrested on charges of first-degree encouraging child sex abuse, pornography.
Linn County Sheriff’s detectives served a search warrant at a residence on Sand Ridge Court in Lebanon at 3:50 p.m. on Dec. 19, according to a news release.
The search warrant was the culmination of an extensive investigation into the online distribution of child pornography over the Internet from an IP address in Lebanon.
Detectives served the search warrant when…