CBI Joint Director Arun Kumar told reporters in Delhi, `We have carried out two tests - polygraph test and narco analysis test on Krishna in Bangalore. We conducted two other tests before leaving for Bangalore. A psychological test was conducted on him in AIIMS on June 9. On the basis on these, we have arrested him.`
Arun Kumar refused to divulge details of the tests, but said that `investigations are on.`
Image: Krishna`s brother Mohan and sister Parvati after meeting to Dr Nupur Talwar in Noida on Friday, in connection with Noida twin murder case.
Text: Sify News Desk