noun
juvenile offender
Legal and formal term for a young person who has committed a crime. Often used in news reports and official contexts.
若年犯罪者の更生プログラムが重要視されている。
Rehabilitation programs for juvenile offenders are being emphasized.
警察は若年犯罪者の増加について報告した。
The police reported on the increase in juvenile offenders.
Compound of 若年 (young age) + 犯罪者 (criminal). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.