58. Audit.- (1) The Commissioner may serve on any person in the prescribed manner a notice informing him that an audit of his business affairs shall be performed and where applicable, that an assessment already concluded under this Act may be reopened.
Explanation.- A notice may be served notwithstanding the fact that the person may already have been assessed under sections 31, 32 or 33 of this Act.
(2) A notice served under sub-section (1) of this section may require the person on whom it is served, to appear on a date and place specified therein, which may be at his business premises or at a place specified in the notice, to either attend and produce or cause to be produced the books of accounts and all evidence on which the dealer relies in support of his returns (including tax invoices, if any), or to produce such evidence as is specified in the notice.
(3) The person on whom a notice is served under sub-section (1) shall provide all co-operation and reasonable assistance to the Commissioner as may be required to conduct the proceedings under this section at his business premises.
(4) The Commissioner shall, after considering the return, the evidence furnished with the returns, if any, the evidence acquired in the course of the audit, if any, or any information otherwise available to him, either
(a) confirm the assessment under review; or
(b) serve a notice of the assessment or re-assessment of the amount of tax, interest and penalty if any pursuant to sections 32 and 33 of this Act.
(5) Any assessment pursuant to an audit of the persons business affairs shall be without prejudice to prosecution for any offence under this Act.