  In recent years the use of digital communication has increased. This also
increased the chance to find privileged data in the digital evidence.
Privileged data is protected by law from viewing by anyone other than the
client. It is up to the digital investigator to handle this privileged data
properly without being able to view the contents. Procedures on handling this
information are available, but do not provide any practical information nor is
it known how effective filtering is. The objective of this paper is to describe
the handling of privileged data in the current digital forensic tools and the
creation of a script within the digital forensic tool Nuix. The script
automates the handling of privileged data to minimize the exposure of the
contents to the digital investigator. The script also utilizes technology
within Nuix that extends the automated search of identical privileged document
to relate files based on their contents. A comparison of the 'traditional' ways
of filtering within the digital forensic tools and the script written in Nuix
showed that digital forensic tools are still limited when used on privileged
data. The script manages to increase the effectiveness as direct result of the
use of relations based on file content.
