Law & Order: Special Victims Unit premiered in 1999 as a spinoff created by Dick Wolf, and its prologue has opened nearly every episode since. The lines are spoken by narrator Steven Zirnkilb over music by Mike Post, explaining that sexually based offenses are investigated by the SVU detectives. The wording became one of television's most quoted openings, widely parodied online and reused in edits far beyond the show. Its formal tone makes any subject sound official, which keeps the clip popular for intros and memes.