There is no single famous source for this clip; it belongs to the huge family of radio static and dispatch sounds that circulate on soundboard sites and editing packs. Creators grab it because the noise of a police radio is instantly recognisable even at half a second long. It shows up in prank calls, gaming streams and meme edits wherever someone wants the threat of authority without showing an actual officer. Its appeal has stayed constant because the squelch of a dispatch radio reads as law enforcement in any country, making it a universal shorthand for getting caught.