@Benjamin *****
i think you have to proof that any Thai was refused entry to it's home country. You can enter with id, run out passport, even without any ID (when you are able to pass the other country immigration) the only point is that the immigration has the right to check your identity. So a id is 100% enough, an run out passport too because it holds all information to identify the holder. No country can refuse entry for it own citizen. Otherwise international travel wouldn't work. And this is not only valid for Thailand but for all countries.