If they were inclined to, they could easily deprive you of enough water not to kill you but make you very cooperative. I'm not saying they would do it, I know v

If they were inclined to, they could easily deprive you of enough water not to kill you but make you very cooperative. I'm not saying they would do it, I know very little about Japan and how it works there. I just know the tactic isn't unheard of for interrogations in the US and some other countries.