CONTROL DEVICE, IN-VEHICLE STERILIZATION SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM

A control device that controls an ultraviolet emission device such that the inside of a vehicle is sterilized is provided. The control device includes a vehicle state acquiring unit configured to acquire a state of the vehicle, a determination unit configured to determine whether a person is present inside of the vehicle based on the state of the vehicle, and a control unit configured to control the ultraviolet emission device with reference to a result of determination of whether a person is present inside of the vehicle.