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27 June 2019The confirmation of the composition of the explosive, the possibility of an accidental explosion and the discovery, among the rubble, of what, perhaps, is the switch that caused the massacre of the Bologna station, 85 dead and more 200 injured.

These are the main elements of the chemical-esplovistic report prepared in the trial of Gilberto Cavallini, former Nar accused 39 years after the contest in the attack and filed, after various extensions, by experts Danilo Coppe and Adolfo Gregori, appointed by the Court of Assizes .

The geomineralist and the lieutenant colonel of the Ris of Rome analyzed the studies made at the time, integrating them with the finds found among other things on a billboard posted in the waiting room, on some objects delivered by relatives of the victims, on parts of loam preserved from the time and, above all, in the rubble that had been exposed to the weather for years in the Prati di Caprara, an old barracks in the suburbs.

Just among these an object was found, which could be the switch. With a lever similar to those used in the automotive industry, "its deformity makes it feel very close to the explosion". And in a waiting room of a train station, the experts say, "according to the writer, there was no reason to be there".

Similar devices, the experts also note, appear to have been found in the device destined for Tina Anselmi and in the one transported by Margot Christa Frohlich when she was arrested in Fiumicino in 1982. The latter is a figure known by the investigations on the massacre: it is, in fact, the German terrorist investigated and then archived together with Thomas Kram in the so-called 'Palestinian track', an alternative hypothesis to that ascertained by the final judgments.

The report confirms, then, that the bomb was made up "essentially of TNT and T4 of sure origin from the unloading of war bombs and an appreciable quantity of launch charges (which justifies the presence of nitroglycerine and stabilizers found)". Furthermore, "the presence of a percentage of nitroglycerin gelatinate cannot be completely excluded".

This is a passage that has affected the civil lawyers: "It is a confirmation - says Andrea Speranzoni, who assists the families of the victims - of what was declared by the repentant, such as Sergio Calore and Paolo Aleandri". The report speaks of "congruence" with these statements and which therefore could connect the explosive to that used by right-wing terrorism at that time.

But in the conclusions of the paper we also read that on an exclusively probabilistic basis "it is believed that, if there was a device between the power source and the trigger, this could have been a mechanical timer. However, it is not excluded hypothetically , that the transport switch was defective or damaged enough to cause a premature-accidental explosion of the bomb. "

An element defined "significant and innovative" by the lawyer Gabriele Bordoni, defender of Gilberto Cavallini, as well as the fact that according to the experts, in the waiting room of the Bologna station there were no conditions for a body to be completely dematerialized.