ECtHR: "The Court considered that, even assuming that the applicants’ reputation had been damaged, this was not on account of the argument put forward by the book’s author but rather as a result of the suspicions expressed against them, which had led to their being placed under investigation in the course of the criminal investigation (the prosecutor’s office decided to take no further action in July 2008) and had led to intense media attention and much controversy. The information had thus been brought to the public’s attention in some detail even before the investigation file was made available to the media and the book in question was published. It followed that the national authorities had not failed in their positive obligation to protect the applicants’ right to respect for their private life."
And a lot of that negative speculation was fuelled by PJ leaks (some true, some misleading and others wildly inaccurate), and an overly cosy "scratch my back and I'll scratch yours" PT tabloid / PJ relationship.