The motion filed Monday by Lock Haven-based Keystone Central School District argued that the subpoena wasn't lawful and asked Judge John Cleland to either invalidate it or issue a protective order.
State prosecutors say Sandusky's lawyers are improperly issuing subpoenas and using them for a fishing expedition. Cleland is giving Sandusky's lawyers until Thursday to respond to the prosecution's objections.
The motion by Keystone Central School District says much of what Sandusky is seeking is confidential under state law.
Sandusky is scheduled for trial in June on 52 criminal counts, allegations he's denied.
