“The conviction rate is 99.3%. By only stating this high conviction rate it is often misunderstood as too high—however, this high conviction rate drops significantly when accounting for the fact that Japanese prosecutors drop roughly half the cases they are given. If measured in the same way, the United States' federal conviction rate would be 99.8%.”
The author is a criminal lawyer (https://ja.wikipedia.org/wiki/朔立木), so I'm assuming it's stark accurate.
As someone who has had cases thrown out before trial, and known other people who have been found "not guilty", the conviction rate for non-federal in the US is (very) much lower.
It's not that it's too far compared to the other stuff, but they also have a hard time catching higher ups with this other stuff, since they don't do it themselves.
So it's actually a very common way to catch them. One from the Yamaguchi clan was caught recently for having subscribed for a point card in a supermarket.
If it's the system, then should we not expect Japanese living abroad to engage in more crime? Are Japanese-Americans more likely to engage in crime than their ancestors?
Take castes for example Japan has castes or "Burakumin" even now in 2023. Anyone who deals with "unclean" job like slaughterhouse, undertaker, obviously Japanese mob (which ironically was created due to the discrimination). Supposedly (and highly likely) the people who were tasked with cleaning up in the radioactive areas of the Fukushima Daiichi disaster were all or labelled Burakumin people.
Then there is Japanese blood personality types which is yet another form of discrimination, lord help you if you're type B.
The indigenous residents of Japan Ainu are also discriminated against.