There are several different reasons why they may provide a nil response. The retention period for a document may have passed and the document may no longer exist. It may also be a circumstance where the information being sought by an applicant is not tracked by the department, so that information may not be kept. Under those circumstances, if somebody asked for information that does not exist or that no longer is retained by the department, because of either the passage of time.... A retention record exists for various records, and if that period of time is exceeded, it may no longer be available.
On February 12th, 2024. See this statement in context.