(g) for the purpose of preventing the spread of an infectious or contagious disease; (h) in the case of a person who is, or is reasonably suspected to be, of unsound mind, addicted to drugs or alcohol or a vagrant, for the purpose of his care or treatment or the protection of the community; (i) for the purpose of preventing the unlawful entry of that person into Zambia, or for the purpose of effecting the expulsion, extradition or other lawful removal of that person while he is being conveyed through Zambia in the course of his extradition or removal as a convicted prisoner from one country to another; or (j) to such extent as may be necessary in the execution of a lawful order requiring that person to remain within a specified area within Zambia or prohibiting him from being within such area, or to such extent as may be reasonably justifiable for the taking of proceedings against that person relating to the making of any such order, or to such extent as may be reasonably justifiable for restraining that person during any visit that he is permitted to make to any part of Zambia in which, in consequence of any such order, his presence would otherwise be unlawful. (2) Any person who is arrested or detained shall be informed as soon as reasonably practicable, in a language that he understands, of the reasons for his arrest or detention. (3) Any person who is arrested or detained(a) for the purpose of bringing him before a court in execution of an order of a court; or (b) upon reasonable suspicion of his having committed, or being about to commit, a criminal offence under the law in force in Zambia; and who is not released, shall be brought without undue delay before a court; and if any person arrested or detained under paragraph (b) is not tried within a reasonable time, then, without prejudice to any further proceedings that may be brought against