ReneH, I'd a croc bag shipped in directly from Paris, and on the manifold, I could tell that it had a CITES with it when it flew out of Paris. Upon arrival here, it was gone. Customs must have taken it. My understanding is that it is only necessary for export.
But some of the ladies here say it's needed to be kept inside your bag, in case custom officers ask to see it. Sensitive countries like Australia apparently need to see the cert. I am not good at explaining the rationale why ... I think Grands Fonds said something about protection of endangered species, and customs need to make sure it's OK.