DFI/2022-0082: Freedom of Information Act 2000 request for details of the numbers of: 1) DVA Category B-only Driving Examiners in Northern Ireland, excluding dual role examiners; 2) "L" Driving Tests that returned to Altnagelvin Test Centre within 15 minutes of beginning; & 3) also for all Category B tests, since 23 April 2021.