YOU SAID:
when the impostor is not sus but you think the impostor is
INTO JAPANESE
詐欺師がsusではないが、あなたが詐欺師がsusだと思うとき
BACK INTO ENGLISH
When the scammer is not sus, but you think the scammer is sus
INTO JAPANESE
詐欺師がsusではないが、詐欺師がsusだと思う場合
BACK INTO ENGLISH
If the scammer is not sus, but the scammer thinks it is sus
INTO JAPANESE
詐欺師がsusではないが、詐欺師がsusだと思っている場合
BACK INTO ENGLISH
If the scammer is not sus, but the scammer thinks it is sus
That didn't even make that much sense in English.