ST. PAUL (AP) - The Minnesota Supreme Court has agreed to consider whether a high school student should have been expelled for having a pocket knife in her locker.

The United South Central school board in Wells expelled Alyssa Drescher for the final six weeks of her junior year. She said she left the knife in her purse in her locker by accident after doing chores on her boyfriend's farm.

The Court of Appeals in July ruled that the district should not have expelled Drescher, who graduated last spring. It said her violation wasn't intentional.

But the district, backed by the Minnesota School Boards Association, asked the Supreme Court to review the decision, saying it undermines the ability of schools to keep weapons out. They say it affects every school and student in Minnesota.