THIRUVANANTHAPURAM: Cantonment SI Biju, the police officer that seized bundles of unused answer sheets and a seal of physical education director, has been transferred. Special Branch SI Shafi will take over as the investigation officer.

In a search conducted at the accused Sivaranjith’s residence on Sunday, police recovered unused answer sheets and a seal. However, the source and purpose of these papers are not yet clear. Any further information regarding this could only be found after further investigation, police sources say.