Chair, I would continue:
On May 25, 2010, the Leader of the Government in the House of Commons made a statement regarding the attendance of ministers' employees before parliamentary committees. A copy of this statement is attached to the report.
Also:
The Committee received a letter dated May 31, 2010 from the Minister of Natural Resources, noting that he had “instructed Mr. Sébastien Togneri and Ms. Jillian Andrews that I will appear before the Committee in their place”. A copy of this letter is appended to the report.
I would continue:
In light of this matter, the Committee has reason to believe that a potential breach of privilege has occurred. Your Committee feels it is their duty to place these matters before the House at this time since a question of privilege may be involved and to give the House an opportunity to reflect on these matters.