(1) Section 2(1) of the Principal Act is amended by the insertion of the following definitions:

"'employment agency' has the same meaning as it has in the Employment Agency Act 1971;

'medical assessor' means -

(a) an officer of the Minister who is a registered medical practitioner, or

(b) such other person who is a registered medical practitioner -

(i) engaged by the Minister under a contract for services or otherwise, or

(ii) employed by an employment agency under a contract of employment (within the meaning of the Protection of Employees (Temporary Agency Work) Act 2012),

to provide medical services to the Minister;".

(2) The Principal Act is amended -

(a) in section 46(1)(b)(iv) (amended by section 5 of the Act of 2007), by the substitution of "an officer of the Minister or a medical assessor" for "an officer of the Minister",

(b) in section 46D(1)(a)(iii) (inserted by section 12 of the Act of 2010), by the substitution of "an officer of the Minister or a medical assessor" for "an officer of the Minister",