It’s prefect not perfect. A prefect is an older pupil at school who is responsible for younger children.

I have not heard the word "prefect" used in the U.S. I have heard the word "prefecture". It refers not to a person but to a place, usually the police station, or the district controlled by the police station. Were I to hear the word "prefect" in the U.S., I would probably interpret it as a synonym for "prefecture".

Entire one.