The Samui Provincial Court yesterday ordered public prosecutors to submit key evidence in the much-publicised murders of two British tourists on Koh Tao to the Central Institute of Forensic Science (CIFS) for verification.
The order was in response to a request made by the defendants' lawyers.
"It is a measure to ensure justice," Nakhon Chomphuchat, the head of the defendants' legal team, said.
The items of evidence include DNA samples.
Defendants Zaw Lin and Wai Phyo, two Myanmar migrant workers on Koh Tao, are accused of murdering two Britons last September.
The brutal crimes against the victims made headlines worldwide, prompting serious investigations into the case.
Zaw Lin and Wai Phyo were arrested last October and initially confessed to the crimes. They have later said they were tortured into confession.
DNA test results, however, are among the solid evidence used against them.
Both defendants showed up in the courtroom yesterday. When approached by reporters, they said their stress had eased, their health had improved, and their hope to return to freedom had increased.
The court has set 18 hearing sessions for their case.
The first hearing will start on July 8, during which representatives from the British embassy and relatives of the victims will likely attend.