Ensure that you are a 'government verified ID' guest on your profile.
I suggest that people unhappy to send a full scan of their passport
that they scan the passport and then use some photo tool to
obscure and disturb info like last 4 digits etc
Then send the semi info with the message
'I am a verified guest on my profile and you have sent some details of my ID
which i am happy to show you iin full in person when i arrive so that we can enter
the information into the local government secure website as required by
your local regulations. I hope this meets with your agreement'