If you still feel strongly that the Google block action is illegal, then I suggest you employ professional legal help, though this will likely be expensive due to the obvious cross border issues.
Personally I am grateful to Google for tagging potentially malware- or virus-infected sites, and then warning me that the site poses a danger to my computer. I can still manually copy the website's URL into my browser if I feel the report is wrong. Mistakes can occur, like a few months back when a large number of Internet sites were mistakenly tagged as dangerous by Google. I suggest visiting StopBadware.org and search to see if your website is listed. If it is listed, and you are convinced that it is now clean, apply for a request for review from Google.
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