28.—(1) Any person who arrives in Singapore or who is about to leave Singapore must —
(a)
fully and truthfully answer all questions and enquiries put to him or her by an immigration officer or a police officer tending, directly or indirectly, to establish his or her identity, nationality or occupation or bearing on any of the restrictions contained in this Act or the regulations or any absolute or conditional liability on his or her part to any military, naval or air force service under any state or country; and
(b)
disclose and produce to any such officer on demand all documents in his or her possession relating to those matters.
(2) All such answers and documents shall be admissible in evidence in any proceedings under this Act against the person making, disclosing or producing the same.
(3) Nothing in this section is to be construed as rendering any such answer inadmissible in any other proceedings in which they would otherwise be admissible.
(4) Any person who —
(a)
refuses to answer any question or enquiry put to him or her under subsection (1);
(b)
knowingly gives any false or misleading answer to any such question or enquiry;
(c)
refuses or fails to produce any document in his or her possession when required to do so under subsection (1); or
(d)
knowingly produces any false or misleading document,
shall be guilty of an offence and shall be liable on conviction —
(e)
in the case of an offence under paragraph (a), (b) or (c), to a fine not exceeding $2,000 or to imprisonment for a term not exceeding 6 months or to both; or
(f)
in the case of an offence under paragraph (d), to a fine not exceeding $6,000 or to imprisonment for a term not exceeding 2 years or to both.