(1) The processing of a special category of personal data shall be lawful only where -

(a) section 71 is complied with, and

(b) at least one of the following conditions is met:

(i) where the processing is to be carried out on the basis of the consent of the data subject pursuant to section 71(2)(b), the consent referred to in that paragraph explicitly refers to the special category of personal data concerned;

(ii) the processing is necessary -

(I) to prevent injury or other damage to the data subject or another individual,

(II) to prevent loss in respect of, or damage to, property, or

(III) otherwise to protect the vital interests of the data subject or another individual;

(iii) the personal data to which the processing relates have been made public as a result of steps deliberately taken by the data subject;

(iv) the processing is necessary for -