Translation:Did I commit a crime?
This sentence feels strange without using a perfective or continuous form on it. In what sort of situation might this be used?
You are correct: the translation Did I commit a crime is perfective. It's asking about an event that is, from the perspective being offered, complete. In Klingon, it would have to be jIHeSpu''a'? As usual, Duolingo doesn't handle Klingon perfective correctly.
jIHeS'a' asks whether it is my habit to commit crimes, or if I am in this moment committing a crime.
jIHeStaH'a' asks whether I continue to commit crimes or continuously commit crimes.