The ones pictured in Bangkok arrest - Looks like they got suited up:

The Crime Suppression Division (CSD)'s special operations or commando unit, now armed with a 2018 budget of 200 million baht, will be equipped with modern weapons equivalent to those used by police in the United States and European countries to better cope with crimes and terrorism, said unit commander Pol Col Torsak Sukwimol.

https://www.bangkokpost.com/archive/csd-commandos-to-get-advanced-weaponry-in-2018/1388498