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Senior Superintendent Li Kwai-wah of Organized Crime and Triad Bureau shows a modified umbrella with a long pointy end during a press conference in Hong Kong, south China, Sept. 23, 2019. (Xinhua/Luo Huanhuan)

Senior Superintendent Li Kwai-wah of Organized Crime and Triad Bureau shows a modified umbrella with a long pointy end during a press conference in Hong Kong, south China, Sept. 23, 2019. (Xinhua/Luo Huanhuan)