A bench of Chief Justice H L Dattu and Justice Arun Mishra said it would hear the CBI to decide whether the transfer was necessary and then take a call whether to ask the agency to re-transfer the officer concerned.
"You (CBI) reply to it (Swamy's application), on what reason you have transferred him (Joint Director Ashok Tewari)," the court said.
It said after giving a hearing to the agency, the court would decide on whether to ask for re-transfer of the officer or not.
The court asked the agency to file their reply within two weeks and slated the matter for further hearing on April 20.
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Swamy said Tewari has been shifted from all 2G cases in January and was relieved from the CBI itself yesterday.
He said another officer, additional Director R K Datta, to whom Tewari has been reporting, has been empanelled as Special Director in the Government and was also likely to be shifted.
Swamy said the court must pass an order to bring back Tewari and retain Datta to enable them continue the ongoing probe in the 2G case till the trial was completed.