A 50-year-old company director has been jailed for six months after two Hamilton computer companies alerted the Department of Internal Affairs to a collection of child sexual abuse images on his computers.Glenn Morgan of Cambridge was sentenced in the Hamilton District Court after pleading guilty to 15 representative charges of possessing objectionable publications.The Department told the court the companies discovered objectionable pictures when Morgan asked technicians to transfer files from his desktop computer to his laptop and DVDs. Over 50% of 3500 picture files on the laptop were objectionable. They showed children, particularly boys, in sexualised poses or acts with other children and adults. There were also more than a dozen objectionable movie files.Judge Thomas Ingram said imprisonment was required as a general deterrent for such offending.Internal Affairs Deputy Secretary, Keith Manch, praised the actions of the companies in reporting the offending.“We are part of a world-wide effort to combat the child sexual abuse industry and information received from IT companies and the public helps us target those who view and trade in the results,” Manch said. “The distribution and viewing of images is the result of real children being sexually abused and exploited in the worst possible way. Each time anyone anywhere in the world accesses one of those images, the child depicted is victimised again.”A voluntary filtering system for ISPs to block access to sites hosting such images is to be implemented soon.