You can ask the Japanese police for help when you get lost in Tokyo.

你在东京迷路时可以向日本警方求助。

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Four American teenagers, all children of U.S. military personnel, have been arrested on charges of attempted murder, Japanese police said.

日本警方说，四名美国青少年因被控谋杀未遂而被捕，他们都是美国军人的孩子。

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Japanese police control a checkpoint near the edge of the "exclusion zone" that surrounds the nuclear plant.

车辆进入环绕核电站的警戒区边界时，在检查站接受日本警方检查。

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For months, Japanese police attempts to catch a hacker known as "Demon Killer" were hampered by his use of Tor.

BBC: Keyboard

Japanese police began investigating the hacker after he started threatening to bomb schools and nurseries via messages posted to chat forums and discussion boards.

BBC: Keyboard

U.S. troops have a degree of extraterritoriality: U.S. authorities may hand them over to Japanese police, but Japanese police cannot enter bases to arrest them.

NPR: In Okinawa, Elections Renew Debate Over U.S. Bases