What powers does the Commission have while investigating any matter referred to in sub-clause (a) or inquiring into any complaint referred to in sub-clause (b) of clause (5)?
The Commission has all the powers of a civil court trying a suit and in particular in respect of the following matters:

1. Summoning and enforcing the attendance of any person from any part of India and examining him on oath.
2. Requiring the discovery and production of any document.
3. Receiving evidence on affidavits.
4. Requisitioning any public record or copy thereof from any court or office.
5. Issuing commissions for the examination of witnesses and documents.
6. Any other matter which the President may, by rule, determine.