Another unknown test emerges from the RIS papers and reveals a new detail about which nothing was known. "Ten lines written in pen on white paper, surmounted by a date: '20-9-07'. It is the day in which, in the laboratories of the Ris of Parma, Captain Alberto Marino obtained the two negative tracings on the pedals of Alberto Stasi's Umberto Dei bike, in total contradiction with the result of the day before. And it is the prosecutor's consultant Rosa Muscio himself who wrote the note. 'Men's bike pedals removed. That with right-handed screw - he writes - has at least 2 brown traces comb. (+) in the ex terminal part (see photo)'. Therefore the combur test, the preliminary examination for traces of blood, is positive 'The one with left-handed screw - continues the unpublished note - has at least one brown trace on a notch of the knurling (see photo) comb.
But it's the final line that freezes him: 'The latter is taken for OBTI (-)". The Obti test, the specific one for the presence of blood material, is negative. A circled dash. No blood.'
As reported today by Corriere della Sera, La Repubblica and La Stampa, from the notes in the internal file of the Parma Ris acquired by the prosecutors in recent days it therefore emerges that "on 20 September 2007, as reported in a sheet of notes written by the then consultant of the prosecutor Marino, the pedal 'with left-handed screw with at least one brown trace on a cleat' was subjected to the Obti test with negative results. A fact that has never appeared in any report and which had never been talked about before, even informally. In the late afternoon of that September 20, 2007, Marino will carry out two counter-analyses on that sample - which the day before had highlighted 2.78 nanograms of Chiara Poggi's DNA - with negative results. However, those results will also never be put on record and their existence will only be discovered with the recent analysis of the raw data". According to the newspapers, there are two other aspects that make those investigating suspicious. "On 25 September (while Stasi is still in prison awaiting validation) Matteo Fabbri, consultant for the defence, asks on the record that 'a species diagnosis be carried out, such as Obti test, on the traces found on the pedals'. Captain Marino (who signs the document) 'takes note' but writes that he will not carry out that analysis and will proceed with the search for DNA on a new trace taken in the meantime from the pedals (this will also be negative in the genetic test). While two years later, when Stasi is At the trial (he will be acquitted), Marino again 'advises' the Court's expert, Carlo Robino, not to proceed with the 'immunological test', such as the Obti, because the sample is small".
Facts or coincidences that are now read in a completely different light, "especially after the confirmation that it was Marino who gave the order to destroy the Garlasco finds preserved at the Ris in September 2016, as soon as he was appointed commander of the Biology section. Commander Donghi wrote to the Pavia prosecutor's office that they were intermediate samples and that they could not be preserved forever (the judges ordered their destruction 6 years later). But in an internal report (now discovered by the prosecutors), Donghi had instead reported that that order had arrived independently from Marino".
in the RIS report there is no trace of the negative test on human blood
Tg1 publishes, on its social profiles, the 2007 report in which Alberto Marino reports the Combur test positive in the general search for blood on the pedals of Stasi's bike. The former captain of the Parma Ris, however, does not indicate the Obti, the specific test for human blood, which had instead given a negative result. This is a fact which has never appeared in any report and which has never been talked about before, even informally, on which the attention of the Pavia prosecutors is now focused who, as part of the new investigation into the Garlasco crime, have also turned a spotlight on the investigations conducted by the Scientific Investigations Department of the Force. Based on Marino's notes on the tests carried out, also published by Tg1 on his Instagram profile, the one on human blood, called the Obti test, was negative. But the report of 24 September 2007 makes no mention of it.
