57. What power is granted to the institution(s) responsible for examining reports and/or investigating violations?

21. (3) Where an officer of the Agency has reason to suspect the
commission of an offence under this Act following a report made
under subsection (1) or information otherwise received by him, he
shall cause investigation to be made and for such purpose may
exercise all the powers of investigation provided for under this Act
and the Criminal Procedure Code.

22. (1) An officer of the Agency investigating an offence under
this Act may—
(a) order any person to attend before him for the purpose of
being examined orally in relation to any matter which
may, in his opinion, assist in the investigation into the
offence;
(b) order any person to produce before him any book, document
or any certified copy thereof, or any other article which
may, in his opinion, assist in the investigation into the
offence; or
(c) by written notice require any person to furnish a statement
in writing made on oath or affirmation setting out therein
all such information which may be required under the
notice, being information which, in such officer’s opinion,
would be of assistance in the investigation into the offence.

50. A prosecution for an offence under this Act shall not be
instituted except by or with the consent of the Public Prosecutor.

Source: Sections 21 (3), 22 (1), and 50, Anti-Corruption Act, 2006