immigration people were present and they told people to go back to where they were in line - they did not care if you were going to miss your flight - maybe you got lucky or were not seen
thank you for responding - I was speaking from the point of view of Thai immigration, BUT, your right; it's the airlines that are responsible for insuring you can legally enter Thailand, because if you are refused entry, they have to return you to your origin - in my experience the airlines insure you have correct passport and forwarding ticket