His research focuses on the accuracy of unfamiliar face identification, and includes the world’s first international benchmarking test of accuracy in facial forensic examiners and a study of passport examiners. His studies of perceptual expertise have been funded by the Australian Research Council, the Reserve Bank of Australia, Unilever and the Australian Passport Office. He has worked on applied and theoretical problems in this area with a wide network of inter-disciplinary collaborators in academia, industry and government.