YOU SAID:
I am warning you Javert (dare you talk to me of crime)
INTO JAPANESE
私はあなたにJavertを警告しています
BACK INTO ENGLISH
I am alerting you to Javert
INTO JAPANESE
私はJavertにあなたに警告しています
BACK INTO ENGLISH
I am alerting you to Javert
That didn't even make that much sense in English.