(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.".

Based on that paragraph can we conclude that this sentence is true?
the acceptance by a traveller to answer an officer constitutes reasonable grounds for them to murder the traveller on the spot whenever they deem necessary. 
No