English to Spanish Other Law (general) Legal Writing

Hi, all!

I'm translating a Course Description for a Law Program. In the Legal Writing Course, there is this term "closed universe office memorandum" in this context: "Students complete a number of assignments, including short writing exercises as well as both a closed universe office memorandum and an open research office memorandum."

Do you know the correct term in Spanish for "closed universe office memorandum"?

Thanks in advance!