Metropolitan Magistrate Purshottam Pathak extended the police custody of Neeraj, Anurag and Nitin till February 25.
The prosecution had sought their 5-day custody, saying their earlier police remand was not sufficient as "the accused persons had retrieved massive data which is in encrypted form and their presence is needed to decipher it".
"We need their custody to decode the encrypted data as only they are aware of the software they have used," it told the court.
It also said that the mail-ids used by the trio were configured with their mobile phones which could only be accessed with the password in the personal knowledge of the accused.
The police also put on record recoveries made by it in the probe in document form while submitting that they be not made public.
Counsel for accused Anurag opposed the police plea for extension of police custody, saying the main accused in the case Arvind Dabas is already in judicial custody and the police have made all the recoveries from them.
The court, however, rejected his submission, saying the accused are needed in police custody because of technical requirements in the investigation.
Meanwhile, Neeraj's counsel pleaded before the court that he is a patient of asthma and be given the medicines as prescribed by his physician.
The court directed the police to ensure medicines are given to him after consulting doctors.
The defence counsel also submitted that even as they have been asked not to disclose anything related to the case to the media, the police themselves were giving out the details.
Neeraj, Anurag and Nitin had earlier been remanded in police custody on February 19. While Nitin and Anurag were arrested on the same day, Neerah was arrested on February 18 by the Special Cell of Delhi Police.
Delhi Police constable Arvind Dabas was the first to be arrested in the case on February 14. He was remanded in judicial custody till March 6.
New Delhi: The police custody of three private detectives arrested for allegedly retrieving the call details of BJP leader Arun Jaitley was on Friday extended by three days by a Delhi court.
First Published: Friday, February 22, 2013, 22:03