Faced with deliberate theft and inadvertent errors in scanning, Target Corp has introduced TruScan Technology that integrates overhead cameras with check-out scanners.  If an item is not scanned, the customer receives an audio and visual cue, and a store employee is alerted.  The technology has been tested in a number of stores with success.  At the present time, self check-out is limited to ten items and the Company is adding more conventional check-out lanes manned by clerks.

Other supermarket chains, including Harris-Teeter a Kroger banner, are installing cameras above self-checkout stations. The extent of their integration with the scanners is not known.