A fundamental part of the aviation security process is ‘baggage screening’. Aviation security screeners are required to search for threat items within an X-ray image. The task is complex, demanding, involves perceptual and cognitive components and is vital to ensure the safety of the travelling public. QinetiQ CHS has undertaken a research programme, sponsored by Transport Security Division of the UK Department for Transport, to investigate the nature of screener expertise and to develop technologies that will support this expertise. This paper outlines recent findings and discusses support technologies that have been produced as a consequence of this research.
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