Imaging investigation system and imaging investigation method

A shooting inspection method comprising:

• putting an unmanned flying object that is connected to a line and comprises an inspection camera, a traveling direction shooting camera, and an unmanned flying object-side communicator into an inspection space with the unmanned flying object placed on a flight start stage;
• by the unmanned flying object, starting to fly from a state where the unmanned flying object is placed on the flight start stage in the inspection space, shooting in a traveling direction in the inspection space using the traveling direction shooting camera, and flying in the inspection space while transmitting traveling direction shooting data obtained by shooting in the traveling direction from the unmanned flying object-side communicator;
• by an external controller which includes a display and an external controller-side communicator, receiving the traveling direction shooting data using the external controller-side communicator, accepting an input of a control instruction to the unmanned flying object while displaying a moving image or a still image obtained based on the traveling direction shooting data on the display, and transmitting a signal representing the control instruction from the external controller-side communicator;
• and
• by a drawer, connected to the line, drawing the unmanned flying object.