The mere presence of an e-mail address at a large free provider on a website has caused law enforcement authorities to deduce that a German association that helps raise funds for this provider must be connected to this website somehow. Although Zwiebelfreunde clearly has nothing to do with the operation of this provider, they were suspected anyway. That these searches and seizures were ordered by the Bavarian police shows either forensic incompetence at a very advanced stage, malicious intent or both.

After interpreting the contents of a whiteboard as a bomb making manual, the officers then went on to accuse random people present at the hackerspace of plotting a bombing attack. Three people were arrested on the spot and the hackerspace was subsequently searched without a court order and without any witnesses. [...]
If the mere possession of basic chemical knowledge is a cause for suspicion then pretty soon teenagers will have to hide their chemistry books from nosy cops.