The former Secretary for Security Regina Ip who was in charge of introducing the Basic Law Article 23 stood for the Hong Kong Island by-election in 2007 against the former Chief Secretary Anson Chan supported by the pro-democrats.
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The Secretary for Security Peter Lai moved an amendment to make it more explicit that the Commission of Police would exercise such power only if "he reasonably considers it to be necessary to prevent an imminent threat to public safety or public order".