A subpoena for something someone deleted would be a good way to find out. My prediction is that for something deleted, say, six months ago, the subpoena would

A subpoena for something someone deleted would be a good way to find out. My prediction is that for something deleted, say, six months ago, the subpoena would come back empty. (Disclosure: I work for Google, though not on anything like this. Speaking only for myself, not the company.)