An arrest warrant was issued for Yingluck on Friday after she failed to show up at the Supreme Court to hear the final verdict in a case stemming from her government&rsquo;s rice-pledging scheme. 
There has been speculation that members of the armed forces gave Yingluck help to flee given that the former PM had always been followed and observed by military officers. 
Some people have said that it seems unlikely that the military would have let their guard down so near to her verdict day. 
Surapong said that if any officers had been found to be involved in such a scheme, they would be prosecuted.

Military branches clueless over Yingluck exit

None of the three branches of the military – the Army, Air Force or Navy – has yet been able to establish which channel fugitive ex-prime minister Yingluck Shinawatra used to escape from Thailand, military chief General Surapong Suwanna-art said on Wednesday.