of prohibiting the acquisition, receipt, transfer, shipment, transportation, or possession of firearms or ammunition. (e) Judicial review (1) Not later than 45 days after the date on which an assessment of a person under subsection (d) is made, such person or the Federal Government may file a petition for judicial review of the board’s determination with a court of competent jurisdiction. (2) A court shall review a case under paragraph (1) de novo. (f) Burden of proof The burden of proof for all actions arising under this section shall be on the Federal Government to prove, based on clear and convincing evidence, that a person is a danger to self or others and such burden shall be met before the person may be adjudicated as a mental defective under subsection (d)(4) or (g)(4) of section 922 of title 18. (g) Emergency order (1) (A) In the case of a person who the Secretary believes may be an imminent danger to self or others, the Secretary may file an emergency petition in a court of competent jurisdiction to seek a temporary order prohibiting the acquisition, receipt, transfer, shipment, transportation, or possession of firearms or ammunition, if the Secretary has already transmitted the notification letter described in subsection (c). (B) The court in which an action is filed under subparagraph (A) may, if the court finds probable cause exists that a person is an imminent danger to self or others, grant such petition. (C) The Secretary shall submit to the court the information and documents, in unredacted form, that support the Secretary’s position. (2) Except as provided in paragraph (3), an emergency order issued under this subsection shall expire on the earlier of— (A) the date that is 90 days after the date on which the order is issued