Prefects are the main contacts for all students who need help, who have questions or problems. All students are supposed to contact one of their house prefects first before owling their Head of House or the Headoffice. If the prefects can't help you solve your problem, they will contact the professors for you. Other prefect duties may include moderating the forums and IRC channels, or any other tasks that they have been appointed.
Prefects are expected to set an example to their fellow students by being fair and following the HOL rules. The responsibilities of a prefect include awarding and taking house points according to the house points rules. The prefects for each house are chosen at the discretion of each Head of House. If there is an opening in your House for prefects, you will be informed of this in your common room.