By David Heinzmann, Todd Lighty and Jeff Coen
The Chicago Tribune
CHICAGO — The U.S. attorney's office has joined the ongoing criminal probe of an elite squad of the Chicago Police Department, working with Cook County prosecutors to investigate why police officials did not stop rogue officers who allegedly robbed and kidnapped civilians over at least four years, sources familiar with the investigation said.
The move raises the stakes for the Special Operations Section officers who now face the specter of harsher federal punishment and also signals that more cops could be swept up in the probe as law enforcement authorities reach back at least a decade for evidence of criminal conduct.
Feds join probe of elite Chicago police unit