The Atlantic Police Department reports three people were arrested Monday. 30-year old Randi Shafer, of Atlantic, was arrested on a Cass County warrant for Possession of a Controlled Substance. And, 29-year old Daniel Long, and 20-year old Taylor Short, both of Leon, were arrested on charges of Theft in the 2nd degree. All three of the individuals were booked into the Cass County Jail.