The crime rate for foreign residents not counting immigrants is 1.72x that of Japanese nationals. After adjusting for age and gender, it's 1.36x.
The piece cites the following:
1) 2024 White Paper on Crime, Part 4 Ch.9 Sec.2-1 (Penal Code offences)（2023） https://hakusyo1.moj.go.jp/jp/71/nfm/n71_2_4_9_2_1.html
2) NPA Foreign National Crime Arrest Statistics（2024） https://www.npa.go.jp/hakusyo/r07/honbun/excel/bb4z00120.xls...
3) Immigration Services Agency of Japan（End of 2024） https://www.moj.go.jp/isa/publications/press/13_00052.html
4) nippon.com — Shortage of Court Interpreters（2017） https://www.nippon.com/ja/currents/d00402/
5) MOJ/ISA Technical Intern Trainee Absconding Statistics（2023） https://www.moj.go.jp/isa/content/001425159.pdf
6) 2024 White Paper on Crime, Part 4 Ch.9 Sec.3-2 (Trials)（2023） https://hakusyo1.moj.go.jp/jp/71/nfm/n71_2_4_9_3_2.html