States marshal for a district in which the immigration trial judge is sitting shall, if requested by the presiding judge, attend any court proceeding in that district, and may otherwise provide, when requested by the chief trial judge of that immigration trial court, for the security of the immigration trial court, including the personal protection of judges, court officers, witnesses, and other threatened persons in the interests of justice, where criminal intimidation impedes on the functioning of the judicial process or any other official proceeding. The United States Marshals Service retains final authority regarding security requirements for the Immigration Courts. (e) Opinions and orders (1) In general Opinions and orders shall be issued in accordance with rules promulgated by the appellate division, except that decisions on the merits of an application or request for relief from removal rendered by the trial division or the appellate division shall, to the greatest extent practicable, be issued in the form of a written opinion and shall include an analysis of the facts of the case and the legal reasoning for the decision. (2) Precedents Unless subsequently modified or reversed by the appellate division, the court of appeals for the respective judicial circuit, or the Supreme Court, precedent decisions of the appellate division shall be binding on all immigration judges and all officers and employees of executive agencies (as defined in section 105 of title 5, United States Code) with powers, functions, and duties under this Act and other laws relating to the immigration and naturalization of aliens. (f) Recusal of judges Section 455 of title 28, United States Code, shall apply to all immigration judges and proceedings of the Immigration Courts. 622. Immigration courts rules of practice and procedure (a) In general Exercising its en banc authority, the appellate division shall promulgate rules of practice and procedure before the trial division and the appellate division, including— (1) rules governing the