There was a case like that that happened in America back in the early 2000's. A guy had a collection of japanese loli manga, figurines, and and dakimakuras. He got caught when a dakimakura he bought was checked by customs.
There is a minimum sentence for every image possessed of CP. They never found any real CP, just animated stuff, physical and on his computer. He ended up with more jail time than every convicted serial killer put together.
The guy sounds like a total creep, but people need to get a grip when they convict someone for a victimless crime, and charge him more harshly than if he blew up an elementary school with a dirty bomb.