DES MOINES — A jury has begun deliberations in the case of a lottery security officer who allegedly fixed the Hot Lotto game in 2010 to get himself a winning ticket for a $14 million jackpot and then tried to cash it anonymously.

The former security officer, Eddie Tipton of Norwalk, Iowa, is charged with two counts of fraud, each of which carries a maximum sentence of five years in prison. His trial started Monday, and jurors started their deliberations at noon Friday. They went home around 5 p.m. and are scheduled to resume Monday.

Mr. Tipton denies he bought the ticket and said he was not in Iowa on Dec. 23, 2010, when it was purchased at a convenience store in the Des Moines area. He also denies that 39 days earlier he programmed a secure lottery computer to pick the set of numbers that hit the Hot Lotto jackpot.

His lawyer, Dean Stowers, argued that there was no proof Mr. Tipton had altered the computer that generates random numbers. Mr. Stowers said the state had only a theory that it was possible and the fact that Mr. Tipton was one of only a few people who had access to the computer room.