Emeritus Professor G A (Tony) Vignaux has a PhD in Physics from London University and has been an Operations Research scientist in the UK and New Zealand. In 1968 he was appointed head of a combined computer science and operations research department at Victoria University, Wellington. His research interests include simulation and Bayesian data analysis. He is joint author of 'Interpreting Evidence', a book on forensic analysis of evidence. He recently retired from full-time teaching but continues to have an office at the University, does some teaching in simulation and continues his research interests.