Based on Google's wording[1], it seems you just need to share that document with one single person; if that person flags it, at that point Google is allowed to investigate even if the document is not public.
[1] "After we are notified of a potential policy violation, we may review the content and take action, including restricting access to the content, removing the content, and limiting or terminating a user’s access to Google products."
Based on Google's wording[1], it seems you just need to share that document with one single person; if that person flags it, at that point Google is allowed to investigate even if the document is not public.
[1] "After we are notified of a potential policy violation, we may review the content and take action, including restricting access to the content, removing the content, and limiting or terminating a user’s access to Google products."