The conference theme was “eJustice – Mission (im-) possible?”
The conference Website is at: http://www.edvgt.de/pages/23.-deutscher-edv-gerichtstag.php
The conference program is at: http://www.edvgt.de/pages/23.-deutscher-edv-gerichtstag/programm.php
Reports on some conference presentations and programs are purportedly available at lawgical.de, but that site is currently inaccessible.
The hacker camp event on the first day of the conference appears to have been a training session on electronic security, rather than a hackathon.