SNP MSP says the chief constable should not be tried in publicpublished at 15:08 Greenwich Mean Time 10 January 2018
SNP MSP Alex Neil says the cabinet secretary got it right and had a duty to make sure the SPA process was robust.
Mr Neil also says the chief constable should not be tried in public by the media.
He says the Public Audit Committee has seen the failings of non executive directors on the SPA.
Mr Matheson says the new chair of the SPA is giving consideration to how to support members of the authority in decision making.
The justice secretary says PIRC are conducting their investigation independently.
He says he would like to see the investigation completed as quickly as possible but it will take as long as required.