How are advertisers deliberately deceiving consumers? Chris Daly, Chartered Institute Marketing Chief Executive, explains how this phenomenon occurs and why it can't be easily spotted. Nick Peters looks at the role of affiliate marketing and how it has become a huge business with Kevin Edwards, Global Client Strategy Director at Affiliate Window, while Mark Finney, of ISBA, explains the threat of ad fraud, the scale of this organised crime and how it's costing advertisers billions of pounds every year.