It's really not something I have looked at or studied at all. What I deal with is related. There are exemptions for personal information, but the requests we deal with are not about people's own personal information. In principle, to have a central database of all personal information, I don't know how it would be done or how it would work. As I said, it's something that you need to ask my colleague.
On February 25th, 2016. See this statement in context.