662. Number. With a view to the readier filling up of vacancies in the rank of District Inspectors, Cadets, over and above the full number of officers, may be appointed, under the following conditions, for the purpose of under going instruction at the Depot, and of being prepared and fitted to take charge of districts as casualties occur.
663. Conditions. Candidates for Cadetships in the Royal Irish Constabulary must be unmarried, and between the ages of 21 and 26. A candidate must have attained the age of 21 and must not have attained the age of 26 on the first day of the examination. An officer in the Regular Army or Navy, having at least five years' service on full pay, or an officer in a Police Force, having three years continuous service, may be admitted up to the age of 28, sons of officers of the Force are permitted to enter at the age of 19.
664. Each candidate must be at least 5 feet 8 inches in height, with adequate chest measurement. He will be required to pass the medical examination of the Surgeon of the Force. He must be in good health, and free from varicose veins, varicocele, spinal curvature, impediment of speech, defect of sight or hearing, or any other physical defect or disposition to constitutional or hereditary disease or weakness of any kind; he must be in all respects well developed, and should possess sufficient strength to enable him to undergo the fatigues to which officers of the Royal Irish Constabulary are liable.
665. The following tests of vision will be applied to each candidate at the medical examination, viz.:- He must be able to read with each eye separately, and without glasses, Snellen's Metrical Test Types(Edition 1898) numbered D=10, at 20 English feet, and those numbered D = 0.8 at any distance selected by the candidate himself. Squint, inability to distinguish the principal colours, or any morbid condition liable to the risk of aggravation or recurrence in either eye, will involve the rejection of the candidate.