A crime branch official said they were trying to trace the auto-rickshaw driver who had helped the couple escape. He added that they were also trying to ascertain if any Chandigarh Police cop had helped the two in their escape.
The police on Friday had recovered the blood-stained clothes of the accused and the knife in the inspector's murder. After the murder in the wee hours of June 8, Haryana Police had arrested Bunty and Sarita from a hotel in Paharganj, New Delhi, on June 9.
At present, the couple is in four-day police remand till June 17. City police had brought the duo from Sonepat to UT district courts on production warrant on Thursday.