Investigation Report

Investigation Report is a diary entry that can be collected in Metro Exodus' The Two Colonels DLC.

Location
The Two Colonels: Right after starting the level where you defend Sibirskaya, you will go through a civilian shelter, at the end of which a soldier will open a door for you. Before going through, grab the report from the desk on your left.

Transcript
To OSKOM Special Department Investigator

PEREPLETCHIK Y.I.

Even cursory examination of the bodies revealed classic symptoms of medium-severity radiation sickness in most of the rioters: hemorrhages, atrophic lesions of skin and mucus membranes, hair loss, etc.

Judging by the severity of symptoms, they stopped taking the radioprotector over a month ago, it's impossible to narrow it down more though, as to do that I'd need to know the stations where they'd been spent most of the time at during that period.

I deem conducting autopsies unnecessary, as I simply do not have enough personnel available.