New York Police Department officers berated a young African-American man named Alvin during a so-called stop-and-frisk in 2011, an audio recording obtained by The Nation revealed.

In the clip, the officers tell Alvin that he is being stopped because he kept looking at them with his hood up. As he was being searched, one officer threatened to arrest Alvin for “being a fucking mutt.” Another officer added: “Dude, I’m gonna break your fuckin’ arm, then I’m gonna punch you in the fuckin’ face.”

But the officers were apparently unable to find anything illegal on Alvin and he was not arrested.