How many Japanese police officers does it take to apprehend a naked white guy ?
Quite a few apparently, as you can see from these videos. Except most of them were running away from him, as he threw rocks and chased them away with his blindingly white skin. Reports from Japan Probe says that either he was a British man that was part of a tour group who lost a bag in the moat of the Imperial Palace, or a British man from Spain that was part of a Spanish tour group whose friend lost a bag in the moat.
Either way, why would he strip completely naked and jump into the moat in the first place? It looked like some wacky monster movie about a slow-moving, rock-throwing, naked giant terrorizing the innocent citizens of Tokyo as the authorities are helpless to retaliate.