It looks like you're asking for content related to a download for something called "FBI Faces 4.0" for PC.
However, based on publicly available information from the Federal Bureau of Investigation, released for public download. FBI Faces 4.0 Download Pc -
The FBI does have a facial recognition system called the , which includes the Interstate Photo System (IPS) — but this is a secure law enforcement tool, not available to civilians. It looks like you're asking for content related