Los Angeles police outside a 1987* show by The Ramones and Black Flag at the Hollywood Palladium, from the LAPD Communications page on Facebook.
* Updates: Couple of things. The LAPD Communications Facebook page labeled the photo 1987, but it's actually from Nov. 17, 1984. Henry Rollins, lead singer of Black Flag, has written about the LAPD action that night. And — most notable of all — the photo is by our own Gary Leonard.