Originally Posted by
mike_asia
how can they enforce a US law on a Japanese citizen flying from Japan to Hong Kong?
Perhaps by phoning ahead to HKG and asking the law enforcement officers meet the flight upon arrival and then alleging facts that cause the person to be taken into custody?
As a US citizen, I'm not about to test how CX plans to enforce Hong Kong aviation law against me when I'm flying from NRT to HKG or LAX to HKG or HKG to NRT. I'll leave it to others to sort out the conflicts of laws questions by personal experience.