(1) (a) What processes, procedures and mechanisms are in place to ensure the highest standard of examiners assessing persons undergoing their driving licence test and (b)(i) how often are examiners re-examined and (ii) what examinations do examiners take; (2) whether there are any processes, procedures and mechanisms in place to update the examiner training courses on a regular basis; if not, why not; if so, what are the relevant details?