The Duchess of Cambridge returned to her old prep school, St Andrew's School in Berkshire, to meet students and teachers.
The school traditionally observes St Andrews Day and Kate, who studied there from 1986 to 1995, wore a tartan coat which was in keeping with the occasion.
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Kevin Davis, 53, ran a medical company and helped to treat a 15-year-old who had taken a drugs overdose despite not having qualifications.
CCTV shows the 19-year-old victim being struck by a car and thrown metres into the air, before he lands on the pavement and slides along it.
Police are investigating a fresh allegation against John Worboys alleged to have taken place in 1997, ITV News understands.