Here is a troubling story about how Greek authorities misused an EU extradition procedure designed for terrorism cases to attempt to extradite a British antiquities dealer on dubious charges. See: http://www.antiquestradegazette.com/news/7085.aspx
The effort fell apart for lack of evidence in the U.K., but that did not stop the Greek justice system from convicting the dealer in absentia on what are likely trumped up charges.
The dealer has suffered false imprisonment, loss of reputation and financial ruin, but apparently has little recourse.
Stories like these should cast further doubt on Greek show trials related to antiquities repatriation efforts.