Initially, I would probably have a very epic WTF moment. I'd probably think you were being arrested for something you had been hiding out from, like a really awesome fugitive. Maybe something you did while you were in China, something rebellious and brave.
Caught something top secret in one of your pictures (inadvertently of course!) and were getting hauled off by the RCMP for questioning about subversive activities.
My idea's close to this one, except I figured - knowing how our cops react to people photographing large buildings and public transit - that it would just be for taking any photographs at all.
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