(1) A development company shall not, without the prior approval of the Minister in writing, employ within the island in a development enterprise any person not ordinarily resident in the island or in any of the territories hereinafter specified. However, if it satisfies the Minister that the services of any skilled workmen, artisans, or mechanics or of any person possessing particular professional or technical qualifications or skills or experience are necessary for the proper conduct of the development enterprise and that such services cannot be obtained in the island or in any of the territories hereinafter specified, the Minister may by permit in writing authorise him or her to employ within the island such number and classes of skilled workmen, artisans and mechanics and of persons possessing particular professional or technical qualifications or skills or experience, not ordinarily resident in the island or in any of the territories hereinafter specified, and for such periods as may be specified in the permit.