[winds]

I know this seems like a stupid question, but any help would be greatly appreciated guys.

What would happen if the police in Tokyo were to catch me with some weed on me, not much, maybe 2 dimes or something. How long would they put me in jail for? Would I be charged? Would they treat me like crap in the jail?
Also, im not sure if this would change the effect but I am Japanese and have dual citizenship, meaning both Japan and Canada.

Thanks guys.