There are two options for doing that: either the minister takes action outside of Parliament, or the committee can table a report in the House saying that it needs an order from the House to ask Mr. Schreiber and the responsible persons concerned to attend a committee meeting on November 29. If the House of Commons agrees to issue that order, I imagine the Speaker of the House of Commons, Mr. Milliken, will sign a warrant to go to the detention centre in Toronto, which has the authority to ensure that Mr. Schreiber is here on Thursday morning.
On November 27th, 2007. See this statement in context.