How do I stop teachers changing results?

You may choose to remove the ability of teachers to enter or change results at any time, eg. once the result entry due day has passed, or just before or after the printing of reports for the semester, as follows:

If you wish to use this feature, you must remember to go back and reselect Modify Results when you'd like the teachers to be able to do their reports, such as when they are to start reporting for the next semester.