law: Marine Insurance Act, 1963 
  38. Warranty of neutrality 
  (1) Where insurable property,
  
  whether ship or goods, is expressly warranted neutral, there is an implied
  
  condition that the property shall have a neutral character at the commencement
  
  of the risk, and that , so far as the assured can control the matter, its
  
  neutral character shall be preserved during the risk.
  (2) Where a ship is
  
  expressly warranted "neutral", there is also an implied condition
  
  that, so far as the assured can control the matter she shall be properly
  
  documented, that is to say, that she shall carry the necessary papers to
  
  establish her neutrality, and that she shall not falsify or suppress her
  
  papers, or use simulated papers If any loss occurs through breach of this
  
  condition, the insurer may avoid the contract.