That's really weird. I went to a finaid infosession at an ABA school and they told us something like the ABA does not allow 1st year law students to work, even work study. I guess either they lied or your school is breaking the rules.
If the ABA has rules regarding student employment, then it is probably sanctioned around the number of hours a student may work. I doubt it is "forbidden," but, rather, discouraged. I the school I hope to attend does consider it an Honor Code violation if a student works more than 20 hours per week, and they do not recommend than 1Ls work at all during the shcool year. But less than that is okay, and I know of many students who participate in student employment/work stduies. Work studies are addressed in the financial aid section of their website, and the following statement is included in their student handbook:Full-time students may work no more than 20 hours per week. Violations of this requirement could result in an Honor Court violation. If in doubt, please check with the Dean's office.