It's a letter from the committee asking the Information Commissioner to investigate the actions of the comptroller general in reference to what came up in the last committee meeting. He had advice to the chief financial officers of the departments on circumventing the Access to Information Act in relation to the McKinsey study, purposely saying not to write issues down or not to write notes down in case they found their way into an ATIP.
On February 13th, 2023. See this statement in context.