Overview

• Prosecutors say genetic analysis matched the partial male DNA labeled “Ignoto 3” to another cadaver (code 153E) autopsied at the same time as Chiara Poggi, suggesting contamination.
• The profile was recovered from a degraded sample on a non-sterile gauze used in the 2007 oral swab, raising questions about earlier forensic protocols.
• The Procura di Pavia has appointed Prof.ssa Cristina Cattaneo for a broader medico-legal assessment and is weighing exhumation of the other cadaver to obtain a full DNA reference.
• Andrea Sempio remains listed as an indagato in the reopened inquiry, while Alberto Stasi’s defense argues the contamination finding could warrant a revision of his conviction.
• The contamination discovery overturns the theory of a third-party DNA at the crime scene and underscores lasting gaps in autopsy procedures and evidence preservation.