The Barcelona Court of Appeal has ordered the reopening of the investigation into the fire at the Piera mosque in the early hours of July 12, 2025, to identify those responsible for the blaze. The incident, which coincided in time with racist riots in the Murcian municipality of Torre Pacheco,, occurred when the mosque was only awaiting one last municipal permit to open. Although the perpetrators of the fire have not yet been found, the private prosecution brought by the Islamic community of Piera maintains that it was a hate crime.

A Barcelona judge has acquitted the leaders of neo-fascist parties Alianza Nacional and Falange, Pedro Pablo Peña and Manuel Andrino, for whom the prosecution was seeking prison sentences of up to three years for inciting hatred and violence in their speeches on October 12, 2013 at a far-right rally in Montjuïc for Columbus Day. In the rallies, which brought together about 150 people from far-right groups, among neo-Nazi symbols and chants like "Artur Mas, to the gas chamber", the defendants said they were willing to die and "kill" for the unity of Spain and that "there will be no secession of Catalonia if it is not based on a lot of blood". And these expressions, in fact, have been proven by the judge. Even so, the accused ended up being acquitted because the document that gave rise to the investigation - signed by two ultras groups that incited to commit violent acts on Columbus Day 2013 - was false. Thus, the criminal court number 8 of Barcelona concludes that the evidence that allowed the case to be opened was not lawful, making the whole case "contaminated".