Helen Paterson’s work on advancing how police and courts understand memory is recognised in prestigious Eureka prizesGet our breaking news email, free app or daily news podcastMemory is an imperfect thing: research shows that recollections of single events – a purse being snatched, say – differ to those about repeated or ongoing events, such as incidents of domestic and family violence.“What our research shows is that compared to a single-event witness, a repeated-event witness tends to