The trial of two defendants accused of being behind a bomb attack that killed 20 people in central Bangkok last year in August is under way.
Both defendants are ethnic Chinese Uighurs.
Hearings are delayed due to difficulties locating an Uighur translator.
The bomb blast happened at a shrine popular with Buddhists and Chinese.
The defendants have objected although the Chinese embassy has supplied translators.
15 other suspects fled the state although both defendants were caught after the blast.
Cops told local media that an electronic circuit supposed to have already been used in the assault was discovered 30m in the scene and that 3kg of TNT were stuffed in a conduit inside the shrine.
Based on official figures at least 123 people were injured in the assault.
Before the strike the Thai authorities deported more than 100 Uighurs to China – .
The BBC’s Jonathan Head in Bangkok reported that while there were violent components in the Uighur movement, an assault with this scale outside China would have not been common.
