Major flaw in this film.
This was filmed in 1999. They had video back then. Cops had cameras. With all the fancy gizmos in this guys apartment, why on earth would the police send Angelina Jolie down into the tunnels to WALK THE GRID and then Denzel asks her 'Tell me what you see?" The first thing out of my mouth was "Why the hell isn't she wearing a video camera with live feed so Denzel could have followed along on his fancy set up in his place?
Sorry, to be this was a major flaw. I can't be the only person who thought of this.