Last week a small case of copyright violation come to a positive conclusion.
Niccolò Caranti [[User:Jaqen]] is a Wikipedian and as a professional
photographer also a very prolific Commons contributor to the point
that he is a sysop both on itwiki and Commons.
He recently discovered that one of his photos was used for an event
without respecting the terms of the CC-BY-SA license, i.e. without
proper attribution to him and reference to the license.
Supported by Simone Aliprandi - a lawyer specializing in intellectual
property and author of a number of (free/libre) books on the topic of
licenses and Creative Commons in particular - they sent a formal
request to the organizers of the event.
The issue has been resolved amicably with all legal costs paid by the
agency that was working for the organizers of the event (who admitted
their mistake) and a compensation for the author.
You can read more about this case here: