[kodablah]

> Or would it be unavoidable and become public information in criminal complaint filings and such?

I would hope this is the case. While details may be omitted it seems, to know how discovery took place is important in one's ability to challenge it.

[xiao_haozi]

Yes, absolutely. However, we know from leaks over the past decade that this is not always the case for this types of surveillance methods (the methods being made public).