(2) Where a person is convicted of an offence under subsection (1) and the act constituting the offence was done for the purposes of gain, the court shall, in addition to any other penalty it may impose, order that anything received as a consequence of the act be forfeited to the Government. 88. Consent of the Director of Public Prosecutions. A person shall not be prosecuted for an offence under section 85, 86 or 87 without the written consent of the Director of Public Prosecutions. 89. False certificates by public officers. Any person who, being authorised or required by law to give any certificate touching any matter by virtue whereof the rights of any person may be prejudicially affected, gives a certificate which is, to his or her knowledge, false in any material particular commits a misdemeanour. 90. Unauthorised administration of oaths. Any person who administers an oath or takes a solemn declaration or affirmation or affidavit, touching any matter with respect to which he or she has not by law any authority to do so commits a misdemeanour and is liable to imprisonment for one year; except that this section shall not apply to an oath, declaration, affirmation or affidavit administered by or taken before a magistrate or a justice of the peace in any matter relating to the preservation of the peace or the punishment of offences or relating to inquiries respecting sudden deaths, nor to an oath, declaration, affirmation or affidavit administered or taken for some purpose which is lawful under the laws of another country, or for the purpose of giving validity to an instrument in writing which is intended to be used in another country. 91. False assumption of authority. Any person who— (a) not being a judicial officer, assumes to act as a judicial officer; (b) without authority assumes to act as a person having authority by law to administer an oath or take a solemn declaration or affirmation or affidavit or to do any other act of a public nature which can only be done by persons authorised by law to do so; or (c) represents himself or herself to be a person authorised by law to