La misurazione stilistica della Falsificazione. I comunicati delle Brigate Rosse

In Italy, during the so-called Years of Lead, the Red Brigades d d isseminated several written
statements, in which they summarized the ideological intentions and the plan for the Armed
Struggle. In addition to the propaganda dissemination, the Red Brigades reported about
crimes and kidnappings of personalities from industry and politics using the form of written
communication. In 1978, the Red Brigades kidnapped Aldo Moro giving news through a
first statement, which was followed by nine other statements, one of which represents a
fake. In the present study we show the possibilities of linguistic investigation in forensic
science using Computational Stylometry techniques. Taking as an example the statements
that appeared during the Moro Case, it will be shown a posteriori to what extent the fake
statement is different from the original ones. Furthermore, through the stylometric analysis
of the statements, we show which are the stylistic and lexical characteristics that distinguish
the group of Red Brigades statements from the fake one.