The Department of National Defence would be the best to speak to the details of this, but it has to do with the way information is collected on reserve members. There are different groups of reserve members, and they come in and out of full-time service and reserve service, so there has been difficulty tracking them and keeping records on them that would be good enough to use for a research study. You can appreciate that records for a research study might have to be better than records for a personnel system.
On February 14th, 2012. See this statement in context.