Overview
- Federal prosecutor Eduardo Taiano, in a 45–46 page filing submitted Wednesday, asked Judge Julián Ercolini to formally charge former case lead Viviana Fein with aggravated cover‑up.
- Taiano says Fein failed to secure Alberto Nisman's apartment, arrived about 90 minutes late, and allowed 88 people to circulate without control while evidence should have been preserved.
- He lists eight key lapses, including limiting the scene to the unit, entering without protective gear, letting unprotected visitors in, and allowing potential evidence to be handled.
- The filing says crucial clues were lost, citing a third access door that went unnoticed for two days and missed basics like taking the temperature of the body and the bathroom.
- The death is treated as a homicide, IT aide Diego Lagomarsino remains processed as a necessary participant, and probes of former security chief Sergio Berni and senior police and naval officials over the scene handling continue as investigators question intelligence personnel.