Martin McGuinnes speaking about Arlene Foster vote of no confidence

The transcript emphasizes the need for a full independent investigation into the design and abuse of the RHIE scheme. It criticizes the credibility of an investigation led by the DP and the selective release of documents by DP departments. An independent investigation is deemed essential to uncover the truth and restore public trust in these institutions.

What is the significance of establishing the truth of what has occurred?

How can restoring public faith in institutions be achieved according to the text?