KABUL, Afghanistan (AP) — An Afghan judicial panel ruled Monday that administrative detention violates Afghan law, potentially thwarting a U.S. plan to hand over Afghan detainees that American officials believe should continue to be held without a trial.

President Hamid Karzai’s office announced in a statement that a top-level judicial panel met earlier in the day and decided that the detention of Afghan citizens without a court trial “has not been foreseen in Afghan laws” and therefore could not be used.