A Rolfe man has been arrested on two counts of second-degree sexual abuse. Pocahontas County Sheriff Bob Lampe says the arrest of 58-year-old Ronald Christiansen was the result of a four-month investigation that led to two search warrants and an arrest. Lampe says Christiansen’s charged with having sexual contact with a child under the age of 12. He was also charged with felony possession of a firearm. Christiansen’s being held in the Pocahontas County jail on a 65-thousand-dollar cash bond.