(1)A member of the forces or the wife or husband of such a member whose service declaration is in force on the qualifying date shall be treated for the purposes of registration, and any other person whose service declaration is made with reference to the qualifying date for any register shall be so treated in relation to that register—
(a)as resident on the qualifying date at the address specified in the declaration;
(b)in the case of registration in Northern Ireland, as resident in Northern Ireland during the whole of the period of three months ending on the qualifying date; and
(c)in any case, until the contrary is proved, as being a Commonwealth citizen or a citizen of the Republic of Ireland of the age appearing from the declaration and as not being subject to any legal incapacity except as so appearing.
(2)Where a service declaration appearing to be properly made out and (where required) attested is transmitted to the registration officer in the' proper manner, the declarant shall, until the contrary is proved, be treated for the purposes of registration as having had from the date of the declaration or such later date, if any, as appears from it, and as continuing to have, a service qualification.