Joker' Puts Law Enforcement on Alert

The LAPD plans to increase its visibility at theaters when "Joker" opens, amid law enforcement concern about the Warner Bros. film.

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Security stepped up as 'Joker' opens in US movie theatres

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Law Enforcement Seizes Joker's Stash — Stolen Credit Card Marketplace

Missouri Highway Patrol says 'Gotham City' emergency alert about

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Lawmaker worries 'Joker's Law' could carry harsher penalty for

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Extra security at theatres for Joker movie opening