Chapter 2: Bill of Rights (n) to the benefit of the least severe of the prescribed punishments if the prescribed punishment for the offence has been changed between the time that the offence was committed and the time of sentencing; and (o) of appeal to, or review by, a higher court. (4) Whenever this section requires information to be given to a person, that information must be given in a language that the person understands. (5) Evidence obtained in a manner that violates any right in the Bill of Rights must be excluded if the admission of that evidence would render the trial unfair or otherwise be detrimental to the administration of justice. Limitation of rights 36. (1) The rights in the Bill of Rights may be limited only in terms of law of general application to the extent that the limitation is reasonable and justifiable in an open and democratic society based on human dignity, equality and freedom, taking into account all relevant factors, including— (a) the nature of the right; (b) the importance of the purpose of the limitation; (c) the nature and extent of the limitation; (d) the relation between the limitation and its purpose; and (e) less restrictive means to achieve the purpose. (2) Except as provided in subsection (1) or in any other provision of the Constitution, no law may limit any right entrenched in the Bill of Rights. States of emergency 37. (1) A state of emergency may be declared only in terms of an Act of Parliament, and only when— (a) the life of the nation is threatened by war, invasion, general insurrection, disorder, natural disaster or other public emergency; and (b) the declaration is necessary to restore peace and order. (2) A declaration of a state of emergency, and any legislation enacted or other action taken in consequence of that declaration, may be effective only— (a) prospectively; and (b) for no more than 21 days from the date of the declaration, unless the National Assembly resolves to extend the declaration. The Assembly may extend a declaration of a state of emergency for no more than three months at a time. 16