In its latter period, during which the lodge was headed by Licio Gelli, P2 was implicated in numerous Italian crimes and mysteries, including the collapse of the Vatican-affiliated Banco Ambrosiano, the murders of journalist Mino Pecorelli and banker Roberto Calvi, and corruption cases within the nationwide bribe scandal Tangentopoli.
Igennem årene, hvor logen blev styret af Licio Gelli, var P2 involveret i adskillige italienske forbrydelser og mysterier, inklusiv kollapset af den vatikanskejede Banco Ambrosiano, mordene på journalisten Mino Pecorelli og bankmanden Roberto Calvi, og korruptionssagerne i den landsdækkende Tangentopoli-skandale.