The Supreme Court recenly discussed how far the police may go in further investigations under Section 173(8) of Criminal Procedure Code (CrPC).The court also affirmed that even if a charging document has been submitted and trial started--further inquiry should still be carried out.Whether or not there was such subpoena, the primary consideration is to get at the truth.Many a times it comments sharply upon this repeated statement and emphasizes what it really means, rather than simply give lip service to something untrue or why an error is quite explicable.Further investigation can come however after a charge sheet has been filed and trial has commenced: for the prime consideration now becomes arriving at the truth and doing substantial justice.