Identify the theft issue that is present in this case

Question: Facts: The client is charged in state court with theft in violation of Criminal Code Section 18-16-401 Theft. The client manages a store for his employer. His duties include running a cash register, ordering and signing for inventory, stocking shelves, and making the daily cash and check deposit with the bank. One day an order of legal pads arrived. The invoice listed 100 pads. In the shipping box were 110 pads. The client opened the container, took the extra 10 pads, put them in his backpack, and took them home. He stocked the rest of the pads. Another employee saw the client take the pads and reported him to the employer. The employer called the police. Rule of Law: Criminal Code Section 18-16-401 Theft. A person commits theft when he or she knowingly obtains or exercises control over anything of value of another without authorization, or by threat or deception. Assignment: Identify the theft issue that is present in this case.