According to the newspaper Allehanda.se , a bunch of young people from Härnösand Police notified Google when they believe it violates copyright law. According to the police report can Google just as Pirate Bay used to search for copyrighted material.
An example of how Google can be used in the same way as Pirate Bay can also be tested on search Thepirategoogle.com created just to show the similarities.
Thepiratebaygoogle is a Google search that has been set to find torrent files. By adding the keyword "filetype: torrent" in a search in Google, it's easy to find so-called torrent files used for file sharing.
( The translation is abit messy...I used google )