Japan's "safest country" shtick is entirely on paper. Two reasons. 1st, REPORTED crimes (specially sexual assault related ones) are low because Japan. (that's what happens when you drill into people the bullshit that being a victim is equally damning in the eyes of society and ultimately your own fault) and 2nd, prosecutors and police don't take on any case unless its a %100 slamdunk win which makes their justice system look better in comparison (again, on paper).