This article offers a selective review of memory and of issues relevant for a psychiatrist thinking about memory in a forensic context. It considers the development of our knowledge of memory, some of the ways in which memory can be erroneous and some evidence that this fallibility may sometimes be overstated. It concludes with a section on good practice in psychiatric assessment and in medico-legal work, looking at memory assessment, malingering/exaggeration and guidance for expert witnesses.