Dr Aidan McKay, a University of St Andrews Scientific Officer in the School of Chemistry, has pleaded guilty to serious sexual offences, involving attempts to communicate with a child and the possession of indecent images of children at his Dundee home as well as on University property, Dundee Sheriff Court has heard. McKay, 32, admitted to attempting to communicate with someone he believed to be a twelve-year-old girl and downloading sensitive materials involving children. T