A Rocklin man has been arrested at his home for allegedly possessing child pornography.

Peter Nelson, 41, first showed up on the law enforcement radar after he was arrested in October for taking video under women's dresses at the Roseville Costco.

An investigation was conducted that led to the searching of Nelson's home by the Placer County Sheriff's department on April 15.

During that search, his computers were seized. On those were videos as far back as 2007.

Investigators believe that Nelson had placed hidden cameras at his residences in Elk Grove and Rocklin, at his former place of emloyment and in portable bathrooms at sporting events.

Investigators are trying to identify all of the women in the videos. If think you may be a victim, you are urged to call the Placer County Sheriff's office at 530-889-7800.