MASON CITY — A Florida woman accused of cashing stolen checks in north-central Iowa banks has pleaded not guilty. 30-year-old Christina Whitaker of Lantana Florida was accused of going to four different branches of First Citizens Bank in December of last year and cashing eight stolen checks with a total value of $16,300. Authorities say Whitaker used the stolen identity of a bank customer and impersonated the account holder. Whitaker has been charged with ongoing criminal conduct, a Class B felony punishable by up to 25 years in prison, as well as identity theft involving over $10,000, a Class C felony punishable by up to ten years. Whitaker was due in court Tuesday for her arraignment hearing but filed a written plea of not guilty to the charges late last week. Her trial is scheduled to start on December 1st. She remains in the Cerro Gordo County Jail on $50,000 bond.