Section 45 of the Principal Act is amended by substituting for subsection (1) the following:

"(1) An officer of the Commissioner, or a person acting on that person’s behalf, may serve a notice on -

(a) the occupier of any property (whether relevant property or not),

(b) an interest holder, or

(c) such other person who, in the opinion of that officer or person so acting as aforesaid, has information in relation to such property,

requiring him or her to supply, within a period specified in the notice (being a period of not less than 28 days beginning on the date of the service of the notice), and in a manner specified in the notice, to the person who served it such information as is specified in the notice, being information that is necessary, in the opinion of that person, for the purpose of the performance by the foregoing officer, or another officer, of the Commissioner of his or her functions under this Act.".