Whenever a commissioned instructor employed at the Tennessee law enforcement training academy is injured in the line of duty and the injury disables the member from performing the member's regular duties, whether the disability is temporary or permanent, it is lawful for the commissioner of commerce and insurance, in the commissioner's sound discretion and with the approval of the governor and the attorney general and reporter, to retain the injured disabled member of the department on the regular payroll of the department until the member's claim for compensation for the disability is determined by the division of claims and risk management.