Of the 7,302 prisoners who were involved in a violent incident between 2017 and 2022 in Catalan prisons, 5,785 did not have a valid risk assessment at that time, either because it had not yet been carried out or because its validity, which is six months, had expired. This represents 79.22% of prisoners, according to the study. Institutional violence in Catalonia's prisons, The algorithm is based on all the incidents recorded by prison workers in Catalonia in the computerised penitentiary system and includes, among others, assaults, self-harm and disturbances of order. According to ARA, the Justice Department is working on an update to the RisCanvi prediction algorithm – a test to assess the risk of each inmate reoffending – to make it more accurate and with the intention of having it active this year.