33 minutes ago, Srikcir said:

The three officers have been accused of using illegally registered cars, but they have not been charged as the suspected escape occurred before an arrest warrant was issued for Yingluck on August 25.

A judicial source speaking on condition of anonymity said the three officers were not guilty of helping Yingluck evade justice given the absence of an arrest warrant.

http://www.nationmultimedia.com/detail/politics/30327662

So really not an escape. No evasion from an arrest warrant.

Just an unannounced road trip within Thailand in the safety of a police escort.

Strangely enough, you seem to have got it right. They helped her move from BKK to Sa Kaew and her bail didn't restrict her movements within Thailand. Those that then took over and helped her across the border face immigration charges, and possibly charges relating to assisting her skip bail. 

22 hours ago, Chang_paarp said:

This begs the question;

 

Where did they get the DNA sample of Yinluck to compare any sample they may find?

 

This raises all sort of privacy issues, yes I know the authorities will, if need be, pass any laws or regulations to make their actions legal.

 

They have been in her house, she is a fugitive, what privacy issue would there be from taking her toothbrush?

Not so long back a top cop said the bib where the best in the world and if he was taking about telling lies I would have to agree, otherwise DNA as they call it stands for Dumb N>>>>>>>> As-h---s which they are, get out on the roads you lazy sods and do some real work for a change.

I just read that her nickname is Pu (Thai: ปู, pronounced [pūː], meaning "crab").  Maybe she just scurried sideways across the border.  Ever try to chase a Pu Lom on the beach?