(a) maintaining a standard of living which is beyond his official emoluments and other legitimate private means, if any; or

(b) in control or in possession of pecuniary resources or property, whether movable or immovable the value of which is disproportionate to, or which could not reasonably be expected to have been acquired by the officer with, his monthly official emoluments and any legitimate private means,

the Head of Department may, by notice in writing, call upon the officer to explain in writing within a period of thirty days from the date of receipt of such notice how he is able to maintain the said standard of living or how he came by his pecuniary resources or property.

(2) If the officer fails to give any explanation or gives an explanation which does not satisfy the Head of Department, disciplinary action may be taken against the officer in accordance with the Public Service Commission Rules, 1996.