Intl-Intl transit at BKK
 

I hope this is the right forum - if not, let me know.
I have a single booking HKT-BKK-Europe with HKT-BKK on Thai Airways, and BKK-Europe on another *A carrier.
On a booking like that, where will I go through exit immigration and customs, at HKT or BKK? If at HKT - what's the process at BKK?

You will pass through exit immigration and customs at HKT, and be given a C.I.Q. sticker for your BKK transit. Follow the C.I.Q. signage once you land in BKK.

whoops, misread OP

Yes, on single ticket, you will go through immigration at HKT.

That is not the official rule. Official rule is single ticket only for CIQ. I could see TG giving pax a sticker anyway. PG, forget it.

Ok, so once at BKK, with that sticker I go through security and then directly into the international departures?

As an aside, what if one were to take the sticker off and walk out back into the country, I wonder.

Try it and let us know

Snide riposte would have been more appreciated if it were accompanied by a response to my actual question :)

You've already been entered into the computer system as having exited Thailand. So when you tried to exit again, there would be a problem, as the computer would say you had been in Thailand without a lawful entry.

In other words, you would be in big trouble. :)

That much is obvious. However:
1. Someone who wants to quietly overstay in Thailand may not be so concerned about the exit
2. Can't that same person later on buy a separate domestic and international tickets, put the sticker back on (the one he kept from the time he overstayed), walk out into the international transit area as a CIQ, board his international flight and leave. Unless Thailand has strict passenger list checks on outbound intl. flights, I suppose.

Anyway, that was a purely theoretical question, and not the one I am really interested in discussing.

Now, the real question was about what my transit steps would be at BKK with that CIQ sticker.

Follow the CIQ signs/crowds on arrival at BKK, pass a security check, hangout at international departures.

Really? So why even ask if it was so obvious to you?

It's the question you asked. Now I better appreciate RTWFF's response ;)

My riposte was advice - I'm sure many of us would be interested in the outcome