In the years after World War II, Los Angeles was a city caught between Hollywood glamour and a growing criminal underworld. East Coast mobsters saw opportunity in Southern California’s booming nightlife, leaning on clubs and businesses for as much as a quarter of their profits. In 1946, fearing that organized crime would gain a permanent foothold in the city, LAPD Chief Clemence B. Horrall authorized a covert experiment: a small, off-the-books intelligence unit that would become known as the Gangster Squad.
Launching December 12 at the Los Angeles Police Museum, a new exhibit on the LAPD’s Gangster Squad explores this shadow war against organized crime, from Bugsy Siegel’s West Coast empire to the flamboyant reign of Mickey Cohen. Visitors will encounter the figures who defined this era, including Jack Dragna, the quiet “banana importer” whose rackets stretched across the city, and Cohen, the dapper former boxer whose Cadillacs, celebrity friends, and ever-present bodyguards turned vice into spectacle.
The exhibit traces the Gangster Squad’s origins, methods, and evolution. Initially just eight men with no office, no uniforms, and almost no oversight, they tailed mobsters in unmarked Fords, staged late-night “heart-to-heart talks” in the Hollywood Hills, and relied on warrantless raids and illegal wiretaps. Their work blurred the line between policing and vigilantism.
Visitors will see original arrest “mug books,” including Mickey Cohen’s mugshot and arrest records. They will see weapons like an LAPD-marked Ithaca Model 37 shotgun and materials tied to Siegel’s 1947 assassination from Virginia Hill’s Beverly Hills home. Mannequins and objects highlight the era’s visual culture, from the West Coast elegance of Los Angeles mob fashion to the sharp suits and borrowed license plates that allowed Gangster Squad detectives to pose as out-of-town gangsters.
The exhibit also follows the legal and institutional reckoning that followed the Gangster Squad’s questionable tactics. In 1955, the California Supreme Court’s in People v. Cahan, curtailed the use of illegally obtained evidence. Calling the LAPD’s tactics a “flagrant violation of the United States constitution,” and helped push the LAPD out of the freewheeling Gangster Squad era toward the more regulated Organized Crime Intelligence Division and, later, modern transnational organized crime and intelligence work.
Opening December 12, this exhibition offers a rare look at how one city’s fight against organized crime reshaped policing, civil liberties, and the way Americans imagine the noir world of gangsters and the detectives who hunted them.
The Los Angeles Police Museum preserves one of the nation’s most extensive collections related to the history of American urban policing. Housed in the historic Highland Park Police Station, the museum features key artifacts, photographs, and archival materials that illuminate both the celebrated and controversial aspects of LAPD history. Learn more here: https://www.laphs.org/
