This is according to the Houston CBS affiliate
"The beating allegedly resulted in numerous injuries to the child, including cuts and bruises to the child’s back, buttocks, ankles, legs and scrotum, along with defensive wounds to the child’s hands."
Peterson, according to the story, used a tree branch which he referred to as a "switch."
Also from the story, according to police reports -
"telling authorities that “Daddy Peterson hit me on my face.” The child also expressed worry that Peterson would punch him in the face if the child reported the incident to authorities. He also said that he had been hit by a belt and that “there are a lot of belts in Daddy’s closet.” He added that Peterson put leaves in his mouth when he was being hit with the switch while his pants were down. The child told his mother that Peterson “likes belts and switches” and “has a whooping room.”"
The Viking have now deactivated Peterson for Sunday's game vs the Pats.