1. A non-scan detect system for a retail checkout station, the non-scan detect system comprising: a non-scan detect module, the non-scan detect module, when operated, causes the non-scan detect system to: detect the passing of an item across a scanner device of a retail checkout station; determine that the item passing across the scanner device was not registered as a scan; establish a potential non-scanned item based on the item not being registered as a scan; obtain an image of the potential non-scanned item; establish a scanned item based on an item passing across the scanner device being registered as a scan; extract features associated with the scanned item; compare the features associated with the scanned item with the image of the potential non-scanned item; and trigger an actual non-scan if the features of the scanned item do not substantially match the image of the potential non-scanned item.