Yes sorry Peter and others. In my initial message I should have specified that I was only talking about Thailand.
I repeat -- do not carry your original passport. It is worth a fortune to pickpockets.
We are always told that it is the law that you must carry your passport as Thais must carry their ID cards.
At a time of some troubles (forget which) one of the more notorious police area chiefs produced a poster in English aimed at farang stating what to do if stopped by police.
It included tips like -- insist, if being searched, or urine checked that it is done in in a well lighted area. You CAN take photos of the officer etc. About ten tips as I remember.
And one that said that it is only necessary to carry a good copy of your passport and visa(?).
I have lived and worked here in the centre of Bangkok, involving many night taxi trips etc, for 25 years plus and holidaymaking more than that, and although stopped and searched many times have NEVER been asked for my original passport, the copy sufficed.
Well, those are MY experiences. I wonder if anyone else can recall the original police poster (as in 'poster' stuck on a wall). It could have been Thong Lor or Asoke police that issued it.
And Peter, any idea of a print shop that laminates near to Silom or Phrom Pong? My big local one claimed not to do it.