Division 2 relates to preference in employment and is to govern that question for seven years (s. 34). Here the central provision is s. 27. Sub-section (1) requires that an employer shall, in the engagement of any person for employment, engage, in preference to any other person, a person entitled to preference, unless he has reasonable and substantial cause for not doing so. Sub-section (3) states a number of matters which an employer must consider in determining whether such cause exists. Sub-section (4) states the matters that must be considered when an employer is called upon to decide between two or more servicemen entitled to preference. Sub-section (2) provides that any person entitled to preference may apply in writing, to the employer concerned, to be engaged for employment in any position, notwithstanding that employment in that position has not been offered to him. This would, I think, enable a member of the forces inside an employer's service to apply, as well as a member of the forces outside his service. Sub-section (5) (a), however, provides that nothing in the section shall apply in relation to the engagement for employment by any employer of a person who is already employed by him. That means that, if the person appointed comes from inside the employer's service, it does not matter that he is not a member of the forces. Apparently the result is that if a member of the forces applies under sub-s. (2) the employer must consider in relation to all candidates for appointment or persons under consideration for appointment the matters which govern reasonable and substantial cause for not appointing a serviceman and, further, if some other competitors for the position are members of the forces, the matters specified as considerations upon which the choice between them is made. But there is this qualification, viz., if in the end he decides to appoint someone inside his service, the employer is relieved from the duty to act only on reasonable and substantial cause in appointing a man who did not serve and from the duty to proceed only on specified considerations in preferring one member of the forces to another. Section 24 contains an attempt to exclude the operation of other forms of compulsory preference where the Division applies. Sub-section (1) deals with the exclusion of requirements depending on Federal law. It says that the provisions of the Division shall apply to the exclusion of any provisions providing for preference in any matter relating to the employment of discharged members of the forces of any law of the Commonwealth or of any industrial award, order, determination or agreement. Sub-section (2) uses the same formula but in relation to State law. It says that the provisions of the Division shall apply to the exclusion of any provision providing for preference in any matter relating to the employment of discharged members of the forces of any law of a State or of any industrial award, order, determination or agreement made or filed under or in pursuance of any such law.