An example of this is the Finish child pornography filter. If you look at the list of blocked sites you will note that most of the sites are regular porn sites (mostly gay porn), and some are not porn at all. Some people seem to be abusing the filter to block what they personally find to be disgusting with little or no investigation from the Finish police. If these porn sites really hosted child pronography should the Finish police not just inform the authorities of the country where the site is hosted?

Wikipedia article about the website of the guy who started research into the child pron filter: http://en.wikipedia.org/wiki/Lapsiporno.info

His website was later blocked by the filter despite the filter only being intended to be used against foreign websites.