Abstract: The invention provides a conveying system for pieces of luggage, which may or may not form part of a check-in system. The conveying system comprises a conveyor for conveying pieces of luggage, detection means provided with a camera for making an image of at least one object, normally being a single piece of luggage, present on the conveyor at a checking location, and image processing means for the automated processing of images made by the camera. The camera is designed to make images of the infrared type, wherein the image processing means are designed to process images of the infrared type. The image processing means have at their disposal information regarding infrared images of non-suspect pieces of luggage exhibiting at least one area with an elevated temperature.