(3) The refusal by a traveller to answer any question asked by a preclearance officer does not in and of itself constitute reasonable grounds for the officer to suspect that a search of the traveller is necessary for the purposes of this Act or that an offence has been committed under section 33 or 34.".
Travellers reserve the right to remain silent.
A traveller's refusal to answer a question doesn't entitle an officer to search them.
( z0 reserve :ARG0 ( z1 person :ARG0-of ( z2 travel ) ) :ARG1 ( z3 right :ARG1 z1 :ARG2 ( z4 remain :ARG1 z1 :ARG3 ( z5 silent ) ) ) )
(z0 / reserve-01
    :ARG0 (z1 / person
              :ARG0-of (z2 / travel-01))
    :ARG1 (z3 / right-05
              :ARG1 z1
              :ARG2 (z4 / remain-01
                        :ARG1 z1
                        :ARG3 (z5 / silent))))
Travellers reserve the right to remain silent .
z1 :ARG0-of z2
z0 :ARG0 z1
z0 :ARG1 z3
z3 :ARG1 z1
z3 :ARG2 z4
z4 :ARG1 z1
z4 :ARG3 z5