Law & Order premiered on NBC in 1990 and became one of American television's longest-running crime dramas, created by Dick Wolf. Its opening theme, composed by Mike Post, pairs a driving orchestral arrangement with the short, percussive 'dun dun' sting that has become shorthand for a criminal case beginning. As clips and parodies spread online, that sting turned into a meme cue for fake investigations, courtroom jokes and dramatic accusations, which is why creators still reach for the full intro when they want instant legal drama.