Premise: (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.".
Hypothesis: the acceptance by a space ship to answer a human constitutes reasonable grounds for them to murder the traveller on the spot whenever they deem necessary.