Where, whether before, on or after the commencement of this Act, an individual agrees with another person, who is carrying on the business of an employment agency within the meaning of the Employment Agency Act, 1971, and is acting in the course of that business, to do or perform personally any work or service for a third person (whether or not the third person is a party to the contract and whether or not the third person pays the wages or salary of the individual in respect of the work or service), then, for the purposes of the Principal Act, as respects a dismissal occurring after such commencement -

(a) the individual shall be deemed to be an employee employed by the third person under a contract of employment,

(b) if the contract was made before such commencement, it shall be deemed to have been made upon such commencement, and

(c) any redress under the Principal Act for unfair dismissal of the individual under the contract shall be awarded against the third person.