of the charge-sheet has been impeached, we will deal with that contention also. Counsel laid great emphasis on the expression “for which he cannot satisfactorily account” used in clause (e) of Section 5(1) of the Act. He argued that that term means that the public servant is entitled to an opportunity before the Investigating Officer to explain the alleged disproportionality between assets and the known sources of income. The Investigating Officer is required to consider his explanation and the charge-sheet filed by him must contain such averment. The failure to mention that requirement would vitiate the charge- sheet and renders it invalid. This submission, if we may say so, completely overlooks the powers of the Investigating Officer. The Investigating Officer is only required to collect material to find out whether the offence alleged appears to have been committed. In the course of the investigation, he may examine the accused. He may seek his clarification and if necessary he may