It's nearly impossible to block anything on gnutella. Not to mention, it's nearly impossible to prove anyone actually intended to share files like that... While the police can tell you to remove specific files, it's only if you don't that they have anything to prosecute you on.


Your idea of filtering search results is not a good one. It would only mean that searches to your own files would not reveal any of those files. Also, people have the freedom to use any client they want, and most being open source, anyone could remove a restriction such as that.