4 As Skilled is the employer not the principal, it cannot derive any assistance from s29 in pursing its claim for indemnification against Glaxo. Section 29, like its predecessors, the Workers' Compensation Act 1927, s6, the Workers' Compensation Act 1918, s18 and the Workers' Compensation Act 1910, s9, recognises that as between a principal and an employer, the liability of the principal to pay compensation to a worker is secondary to that of the employer. This recognition is derived from s29(4) which entitles a principal liable to pay compensation to be indemnified by any person liable to pay the compensation to the worker independent of the section, that is, an employer. In result, at least in a no fault situation, as between the employer and the principal, the employer bears the primary liability to pay compensation to the worker. The qualification "at least in a no fault situation" depends upon the interpretation given to s134(1). That section is substantially in the same terms as the Workers Compensation Act 1927, ss8F and 8H. Those sections were added to that Act in 1974 by the Workers' Compensation (Alternative Remedies) Act 1973.