An Ivy League business school professor is in federal custody for allegedly having videos of himself engaging in sexual acts with children, ABC News has learned. Lawrence Scott Ward, 63, Professor Emeritus of Marketing at University of Pennsylvania’s renowned Wharton School of Business, was caught with child pornography in his luggage and on his laptop computer after arriving at Dulles International Airport on a flight from Brazil, according to court documents. An affidavit in support of a criminal complaint filed today in federal court in Alexandria says Ward’s luggage was flagged for a more thorough inspection for possible child pornography after a customs officer noticed Ward’s "excessive" trips to Thailand. Federal agents recovered at least three DVDs, in which Ward appears to be "engaging in sexual contact" with children, the affidavit reads. A video of children as young as eight engaged in sexual activity was also allegedly found on Ward’s laptop computer. Ward’s resume says he has been a visiting professor at Chulalongkorn University in Thailand. Federal officials believe Thailand to be a well-known destination for so-called "sex tourists" who travel there to exploit minors. Wharton’s website also lists pro bono consulting work in Brazil as one of Ward’s current projects. According to published reports, in 1999 Ward was fined $2,500 and sentenced to five years probation on charges of attempting to promote prostitution and corrupt minors. In that case, he entered a plea which allowed him to acknowledge that there was sufficient evidence to convict him, without admitting guilt for those charges. Ward’s resume lists several government consulting assignments including work with the Executive Office of the President, the FCC, Department of Commerce and the Special Action Office for Drug Abuse Prevention. Many of his published works deal with the effects of television advertising and marketing on children and adolescents. According to his biography, Ward has been a marketing consultant to many top companies and lists IBM, Microsoft, General Motors, Home Depot, Exxon, Citibank and Johnson & Johnson among his clients. During the 1980s, he hosted a television program, "The Wharton Business Report" on the now defunct Financial News Network. Ward’s biography also states that he was chairman of a foundation that served disadvantaged children with learning disabilities. The University of Pennsylvania issued the following statement today, relating to Ward’s arrest, "We have just learned of the arrest of Scott Ward in Virginia. At the present time, we have very few details. We are currently gathering information about the situation and will take appropriate action as soon as we know more."