(1) The accounting officer or accounting authority of a procuring institution must—
(a) take necessary steps to prevent non-compliance with this Act and abuse of its procurement system;
(b) take necessary steps to ensure that no person interferes with its procurement system or is able to amend or tamper with any bid or contract;
(c) investigate any allegation against an official or other role player of corruption, improper conduct or failure to comply with its procurement system, and—
(i) where necessary, take steps against that official or other role player, and inform the Public Procurement Office and the relevant provincial treasury of those steps; and
(ii) report to the South African Police Service any conduct that may constitute a criminal offence;
(d) verify that a bidder is not an affected person whose name appears in the register of persons debarred in terms of section 15;
(e) reject a recommendation for the award of a bid if the recommended bidder has—
(i) made a misrepresentation or submitted false documents in competing for a particular contract;
(ii) been convicted of any offence involving corruption, fraud, collusion or coercion in competing for any contract; or
(f) cancel a contract awarded to a supplier—
(i) if it becomes aware that the supplier has made a misrepresentation, submitted false documents or information or has been convicted of any offence involving corruption, fraud, collusion or coercion in competing for a particular bid or during the execution of the contract; or
(ii) if any official or other role player was convicted of any offence involving corruption, fraud, collusion or coercion act during the bidding process or during the execution of the contract.
(2) If a provision of a contract concluded by a procuring institution and the successful bidder is contrary to a provision of this Act, that provision is null and void.