Section 1: General prohibition.

(1) Notwithstanding anything to the contrary contained in any law or enactment, including the Customs and Excise Management Act, the Nigerian Ports Authority Act and the Federal Airports Authority of Nigeria Act, it shall be unlawful for any person, not being a duly authorised officer or agent of any of the following, namely-
(a) the Nigerian Customs Service;
(b) the Nigerian Ports Authority;
(c) the Federal Airports Authority of Nigeria;
(d) the Nigerian Immigration Service;
(e) the Port Police; and
(f) the inspection agents,
(g) an approved designated staff of the National Agency for Food and Drug Administration and Control, to do any of the acts or things mentioned in subsection (4) of this section.
(2) Without prejudice to the provisions of subsection (1) of this section, the Nigerian Customs Service may, if it considers it appropriate, by written notification, require the presence of any other relevant agency of the Federal Government in the course of the administration of the customs and excise laws with respect to the importation or exportation of goods in any port.
(3) Notwithstanding the provisions of subsection (2) of this section and unless otherwise requested by written notification by the Nigerian Customs Service, it shall be unlawful for any person, not being a duly authorised officer or agent of the Nigerian Customs Service, the appointed inspection agents or any other person as may be authorised under any law or instrument to that effect, to be concerned with or be involved with the actual process of examination and clearance of goods in any port.
(4) Save for the persons mentioned in this section or a genuine passenger, or a traveller or a bona fide owner of goods, or an approved clearing agent or such other persons as may be authorised by the Minister, it shall be an offence under this Act for any person without lawful authority or excuse, proof of which shall be on the person charged, to do any of the following, this is-
(a) trespass or be found loitering within the vicinity or premises of any of the ports listed in the Schedule to this Act;
(b) enter into and remain in the premises of any port for the purpose of perpetrating or furthering any nuisance thereon;
(c) obstruct, interfere or hinder any authorised person in the performance of his lawful duty under the customs and excise laws; or
(d) hold himself out under any guise or cover as having been authorised to enforce any aspect of the customs and excise laws.
(5) It shall be an offence for any person to conduct any illegal or unauthorised business within the premises of any port.
(6) Any person who contravenes any of the provisions of subsection (4) of this section shall be arrested with or without a warrant by any of the law enforcement officers referred to in subsection (1) of this section or any other person authorised in that behalf and shall immediately be brought before the Court referred to under section 2 of this Act.