Pakistani prosecutors have approached a court seeking voice samples of seven men, including LeT commander Zakiur Rehman Lakhvi, charged with involvement in the 26/11 case, saying the measure will speed up their prosecution.
Special prosecutor Chaudhry Zulfiqar Ali of the Federal Investigation Agency (FIA) filed an application that was admitted for hearing by the Islamabad high court on Thursday.
Prosecutors also filed a separate application that asked the court to declare Indian terror suspect Fahim Ansari a "proclaimed offender" or fugitive.
A two-judge bench issued notices to the seven suspects, asking them to respond to the FIA's application seeking their voice samples. Ali contended that the voice samples would help prosecute the seven suspects.
"The Indian government had sent the alleged voice samples of the seven accused facing trial here. If the court allows us to obtain their voice samples, the truth will be before everyone," he told PTI.
The FIA has for long been seeking voice samples of the seven accused so that they can be compared with recordings provided by Indian authorities.
The recordings include intercepts of communications between the attackers in Mumbai and their handlers in a control room in Karachi.
Lawyers defending the seven suspects have blocked earlier attempts to obtain voice samples by using loopholes in Pakistan's anti-terrorism laws.
"If the voice samples are ignored, the prosecution cannot establish the guilt of the accused," Ali said.
In the second application, FIA prosecutor Chaudhry Azhar asked the high court to declare Fahim Ansari, an Indian accused in the Mumbai attacks, a fugitive. A court in Mumbai has acquitted Ansari in the case.