JOINT BASE LEWIS-MCCHORD, Wash. -

Court records show a Joint Base Lewis-McChord soldier was brought home from Afghanistan this month after admitting to possessing and distributing child pornography.

The News Tribune reports 37-year-old Robert Bruce Campbell pleaded not guilty Thursday to second-degree possession of child pornography. He was released but ordered to remain on base.

This is the second time Campbell has been arrested for possessing child porn, although charges were never filed in the first case. Court records show that in 2006, his wife called authorities after finding inappropriate pictures of children in his gym bag.

Puyallup tribal police were notified by the National Center for Missing & Exploited Children in March that Campbell exchanged emails that included child porn images. The investigation was turned over to the Pierce County Sheriff's Department in May because of where he lives.