INFORMATION RECORDING DEVICE, INFORMATION RECORDING METHOD, AND STORAGE MEDIUM

An information recording device includes: an image acquirer configured to acquire an image which is captured by an imager mounted in a host vehicle to perform a first function; a tailgating determiner configured to determine whether the host vehicle is being tailgated by another vehicle on the basis of the image acquired by the image acquirer; an imaging controller configured to cause the imager to capture an image of surroundings of the host vehicle as a function other than the first function when the tailgating determiner determines that the host vehicle is being tailgated by the other vehicle; and a storage controller configured to store the image captured by the imager in a storage.