YOU SAID:

Although police knew that prosecution wasn't a possibility, they kept records of their investigations and continued making checks into the cases.

INTO JAPANESE

警察は起訴は不可能であることを知っていたが、彼らは調査の記録を保持し、事件の調査を続けた。

BACK INTO ENGLISH

Police knew that prosecution was impossible, but they kept a record of the investigation and continued to investigate the incident.

INTO JAPANESE

警察は訴追が不可能であることを知っていましたが、調査の記録を残し、事件の調査を続けました。

BACK INTO ENGLISH

The police knew that prosecution was impossible, but kept a record of the investigation and continued to investigate the incident.

INTO JAPANESE

警察は起訴が不可能であることを知っていたが、調査の記録を保持し、事件の調査を続けた。

BACK INTO ENGLISH

The police knew it was impossible to prosecute, but kept a record of the investigation and continued to investigate the incident.

INTO JAPANESE

警察は起訴が不可能であることを知っていたが、調査の記録を保持し、事件の調査を続けた。

BACK INTO ENGLISH

The police knew it was impossible to prosecute, but kept a record of the investigation and continued to investigate the incident.