Day & time: Wednesdays on NBC (10-11 p.m. ET)

Premiere date: October 30, 1990

Starring: Sam Waterston, Jerry Orbach, Jesse L. Martin, Elisabeth Rohm, S. Epatha Merkerson, Dianne Wiest

Executive producers: Dick Wolf, Barry Schindel, Jeffrey Hayes

Created by: Dick Wolf

Co-executive producers: Lewis H. Gould, Richard Sweren, Arthur Forney

Supervising producer: William N. Fordes

Produced by: Kati Johnston

Producers: Gary Karr, Wendy Battles, Roz Weinman

Co-producers: Jill Goldsmith, Sean Jablonski, Terri Kopp

Executive story editor: Mark Guggenheim

Directors: Various

Director of photography: John Beymer

Editors: Toni Morgan, Chris Brookshire, David Post

Production designer: Bob Thayer

Costume designer: Jennifer Von Mayrhauser

Technical advisors: Bill Fordes (district attorney), Michael Struk (police)

Casting: Lynn Kressel Casting; Suzanne Ryan

Music: Mike Post

Origination: Various locations in New York City

Produced by: Wolf Films in association with Studios USA Television