An Oakland County man has been charged with multiple sexual assault crimes after police say his son found child porn on his tablet.

Michigan State Police troopers responded to a home in Oakland County, Michigan for a report of a runaway.

Police say when they got in contact with the boy, he informed them about the child porn on his father’s tabelet.

Officials arrested 43-year-old Jeremy David McCallum, after searching the home and finding “large amounts of evidence” of child porn.

McCallum was arraigned in Genesee County on 10 counts of first-degree criminal sexual conduct, two counts of felony firearm, one count of child sexual abuse, one count of extortion and one count assault with a dangerous weapon.

Police contacted child protective services and the boy was put in the care of other family members.