YOU SAID:

I have no idea where to find him officers, but if you do please mention that I'd like to have returned the pretty knife that I stuck ten times in his back.

INTO JAPANESE

彼の警官がどこにいるのかわかりませんが、もしそうなら、私が彼の背中に10回刺したかわいいナイフを返したいと言ってください。

BACK INTO ENGLISH

/(exp) if so/in that case/

INTO JAPANESE

もしそうなら

BACK INTO ENGLISH

/(exp) if so/in that case/