Law and Order DUN DUN

📖 What is the “Law and Order DUN DUN” sound?

This two-and-a-half second audio clip is the instantly recognizable two-note 'dun dun' sting used throughout the Law & Order franchise to punctuate a dramatic beat, usually right before a scene cut. According to composer Mike Post, the sound was built by layering a slamming jail door, a hammer striking an anvil, a drum hit, and field recordings of roughly a hundred people stomping on a wooden floor. The result is a blunt, percussive double-hit that lands with a metallic clang and almost theatrical finality. In meme culture, the sound is used sarcastically to add mock gravity to mundane or trivial moments, framing them as if they were a shocking plot twist on a courtroom procedural. The association grew beyond the show itself after 4chan's /b/ board adopted the phrase 'DUN DUN' as a stamp of ironic drama in 2010, cementing it as internet shorthand independent of the original series. Despite its instant recognizability, Post has noted that technically it is closer to a short musical sting than a pure sound effect, since it is registered and earns royalties each time it airs. Its exact creation date is not pinned down precisely across available sources, so the origin timeline remains loosely documented beyond 'late 1980s' references tied to the show's development.

🧭 Where it comes from

Origin: Law & Order (NBC police/courtroom drama) scene-transition cue, composed by Mike Post — documented

Multiple entertainment sources credit composer Mike Post with creating the 'dun dun' cue, sometimes called 'The Clang,' for Law & Order using a blend of a slamming jail door, a hammer striking an anvil, drum hits, and recordings of men stomping on a wooden floor. Reports place its creation in the late 1980s as the show was being developed, and Know Your Meme and other outlets say the sound effect itself later jumped into meme usage on 4chan's /b/ board in May 2010 when moderators paired the phrase 'DUN DUN' with a post-success screen. No single exact origin year for the show or the sound is given precisely enough across sources, so no year is asserted here.

🎬 How to use it in your edits

Drop it in right after someone states an obvious or petty fact, as if revealing a courtroom bombshell, to comedically inflate the stakes. It also works well as a jarring transition sting between two clips in a reaction compilation, mimicking the show's scene-change rhythm for ironic effect.

Download the file above, then import it into CapCut, Premiere Pro, DaVinci Resolve — or straight into TikTok / Instagram. The sound is free for your videos.

💬 Questions about this sound

ℹ️ Sound details