The Squad went to Gotham in the new 52 after Harley went awol after finding out that Batman had killed the joker and she needed some payback. All she ended up doing was carving some meat that remained from his burnt up corpse and wearing it for a face for a few pages as she "talked" to him.
New 52 Batman dosn't know about the squad.
Old DCU does.
Does old DCU Batman beleive in rehabilitation more that than convict exploitation?
But then, compared to the OMACs... The Suicide Squad is fucking genius.