"Each year, we will publish a short report of all surveillance actions that were taken and have been reported to us by the operators."

From your web page http://tinyurl.com/3etgjcs

Not that I have any valid fears personally in this regard, but having gone through a nasty and protracted divorce whereby my computer was hacked etc etc, what is your policy if such an order is received?

Is the party being observed informed, or maybe giving this advice is usually prohibited by the court orders?

"Hell has no fury like a woman scorned"

That is not enough to log traffic (at least if the server is in Germany). No operator would follow such an order, I guess.
Usually it is prohibited by court orders. If so, nobody is informed. Even if it were not prohibited I doubt we could inform the observed party as we do not have the means to identify it.

Against cracking your computer-use full encryption of your harddrive.

h*tp://www.truecrypt.org/

German mixes only can be forced to log traffic of a suspect in this cases

http://translate.google.de/translate?hl ... /100a.html

http://translate.google.de/translate?hl ... /100b.html

nothing else