Mr Chan suspects that Macau blacklisted him for his role in a group in Hong Kong that in 2003 lobbied against a national-security law, which the government in Beijing wanted Hong Kong to adopt.

• 陈先生怀疑他之所以上了澳门的黑名单是因为2003年他游说香港政府不要通过北京希望香港采用的国家安全法。