The teenage boys charged with the brutal stabbing death of Caltex service station employee Zeeshan Akbar refused to appear via video link in court on Wednesday.
The two Queanbeyan boys, aged 15 and 16, were both charged with murder, robbery, wounding with intent to cause bodily harm, aggravated break and enter and aggravated car theft.
Their lawyers objected to the Director of Public Prosecutions request for further forensic testing, but this application was approved by Magistrate Michael Antrum in the Queanbeyan Children's Court.
The teens will now have their mouths swabbed for DNA investigations, as well as photographs and measurements taken of them for biometric testing.
Suppression orders restricting the reporting of the case were lifted.
Magistrate Antrum instead made an order prohibiting the boys being identified, common practice in cases involving minors.
The two are next due to appear in the Queanbeyan court on October 25.
