SAN FRANCISCO— A San Francisco man was sentenced to 15 years in federal prison for production and possession of child pornography, the United States Department of Justice announced on Wednesday, January 18.

Duane Charles Ackerman, 50, pled guilty on September 27, 2016 to one count of production of pornography depicting minors in sexually explicit conduct, and one count of possessing child pornography.

Between June 2016 and August 2015 Ackerman produced six inappropriate video files of girls younger than the age of 12. According to the United States Department of Justice, the videos contained images of the victim’s genitals, which were shot with a hidden camera. Ackerman had temporarily custody of the victims at his home when the video files were produced.

He admitted to possessing a computer hard drive containing about 15,000 digital images and 800 video files of child pornography.

Along with Ackerman’s 15 year prison sentence, U.S. District Judge, Vince Chhabria ordered Ackerman to serve a 10-year period of supervised release.  Further proceedings have been schedule to discuss restitution payments to the victims.

Suspected child sexual exploitation or missing children may be reported to the National Center for Missing & Exploited Children, via its toll-free 24-hour hotline, 1-800-843-5678.