Definition of sus in English:

1Suspicion of having committed a crime.

他因有犯罪嫌疑被拘捕。

1. 1.1historical as modifier Relating to or denoting a law under which a person could be arrested on suspicion of having committed an offence.
   〈史〉（有关）拘捕嫌疑犯（的法律）的
   the sus law

   嫌疑犯拘捕法。