 Further scrutiny uncovered more self-authorised expenses, including training costs for Colman and Snow and the £464 cost of hiring a chauffeur-driven Mercedes for Snow to attend a meeting on how to save public money.Colman resigned in February 2010 following an internal investigation, subsequently pleading guilty to possession of child pornography.Figures obtained by Wood under the Freedom of information Act revealed the level of pay among university vice-chancellors in Wales.