YOU SAID:
You're under arrest for improper use of magic.
INTO JAPANESE
あなたは魔法の不正使用で逮捕されています。
BACK INTO ENGLISH
You have been arrested for illegal use of magic.
INTO JAPANESE
あなたは魔法の違法使用で逮捕されました。
BACK INTO ENGLISH
You have been arrested for illegal use of magic.
You've done this before, haven't you.