So you're suggesting the sentence would read:
Mr. Walsh asserted that a distinction must be made between a ministerial decision and a departmental one, even if the minister alone is responsible to Parliament.
On March 25th, 2011. See this statement in context.
March 25th, 2011 / 1:20 p.m.
Conservative
The Chair Conservative Joe Preston
So you're suggesting the sentence would read:
Mr. Walsh asserted that a distinction must be made between a ministerial decision and a departmental one, even if the minister alone is responsible to Parliament.
See context to find out what was said next.