; and (B) file an emergency petition in a court of competent jurisdiction to prevent the transfer of the firearm or explosive. (2) Hearing (A) Priority; applicable laws An emergency petition filed under paragraph (1)(B) and the subsequent hearing shall— (i) receive the highest possible priority on the docket of the court of competent jurisdiction; and (ii) be subject to the Classified Information Procedures Act (18 U.S.C. App.). (B) Notice; counsel A court shall ensure that a person for whom an emergency petition is filed under paragraph (1)(B)— (i) receives actual notice of the hearing; and (ii) is provided with an opportunity to participate with counsel in the hearing. (C) Grant of petition A court shall grant an emergency petition filed under paragraph (1)(B) if the court finds that there is probable cause to believe that the person is engaged, or has been engaged, in conduct constituting, in preparation of, in aid of, or relating to terrorism, or providing material support or resources therefor. (D) Costs and fees If an emergency petition filed under paragraph (1)(B) is denied, the Government shall be responsible for all reasonable costs and attorneys’ fees. (3) Arrest authority The Attorney General may arrest and detain a person for whom an emergency petition has been filed under paragraph (1)(B) where probable cause exists to believe that the person is engaged, or has been engaged, in conduct constituting, in preparation of, in aid of, or relating to terrorism, or providing material support or resources therefor. (b) Report Not later than 60 days after the date of enactment of this Act, and quarterly thereafter, the Attorney General shall submit to the Committee on the Judiciary of the Senate and the Committee on the Judiciary of the House of Representatives a report providing, for the reporting period— (1) the number of emergency petitions filed under subsection (a)