Departed Suvarnabhumi on 05 Feb in the mid-morning. It took 45 minutes to get up the escalator and through security to finally reach the down escalator to immigration. They had an airport employee metering the flow on the escalator. That long narrow hall just before going down has no a/c and was packed shoulder-to-shoulder with people. Once down to the immigration level, only half the lanes were staffed. It was taking a minute 50 per person to get through. Total time through security and immigration: 1+30.
Seems that the leadership of Immigration Division 2 cannot identify they have a staffing problem until the PM tells them.
Two issues here. Staffing - 200 extra officers (at what time of day?). But most importantly, ineffective leadership at Division 2. Why does it take the PM to tell them there is a problem? What is so much more important that they cannot spend a few moments resolving the BKK issue?
Technology aside (it will take years to install, breakdown (made in China) and be ineffective anyway), get someone who knows how to think on their own without adult supervision.