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such trial or out of any proceedings connected therewith, the court shall have like jurisdiction with respect to the investigation, inquiry into, or trial of persons for Federal offences and the hearing and determination of appeals arising out of the trial or proceedings; and (c) the jurisdiction conferred on a court of a State pursuant to the provisions of this section shall be exercised in conformity with the practice and procedure for the time being prescribed in relation to its jurisdiction over civil or criminal causes other than Federal causes. (2) Nothing in the provisions of this section shall be construed, except in so far as other provisions have been made by the operation of sections 299 and 301 of this Constitution, as conferring jurisdiction as respects Federal causes or Federal offences upon a court presided over by a person who is not or has not been qualified to practice as a legal practitioner in Nigeria. (3) In this section, unless the context otherwise requires – “causes” includes matter; “Federal cause” means civil or criminal cause relating to any matter with respect to which the National Assembly has power to make laws; and “Federal offence” means an offence contrary to the provisions of Act of the National Assembly or any law having effect as if so enacted. 287. Enforcement of decisions (1) The decisions of the Supreme court shall be enforced in any part of the Federation by all authorities and persons, and by courts with subordinate jurisdiction to that of the Supreme Court. (2) The decisions of the Court of Appeal shall be enforced in any part of the Federation by all authorities and persons, and by courts with subordinate jurisdiction to that of the Court of Appeal. The Constitution of the Federal Republic of Nigeria Updated with the First, Second , Third and Fourth Alterations 185