26 I turn now to aspects of the evidence involving Bradley Jon Gibson, who formerly was employed by Sigma as a Distribution Centre Manager. Mr Gibson's role in the allocation of Sigma's driving work formed part of the case advanced by the TWU in support of the contention it would be appropriate to depart from the formula for calculating the meaning of weekly pay for the purposes of redundancy payments. In short, the TWU invited the Commission to draw the inference a company named Couriers By Demand Pty Ltd ("CBD") was paying amounts of money to Mr Gibson personally in connection with the referral of Sigma delivery work to CBD. CBD filed a notice of motion in the proceedings to oppose the production of certain financial records involving itself and Mr Gibson, which I dismissed on 8 April 2009. For his part, Mr Gibson failed to attend the Commission to give evidence on 25 May 2009, in circumstances where I earlier adjourned proceedings specifically to allow him the opportunity to obtain his own legal advice given the nature of the matters to be put to him.
27 The TWU invited the Commission to draw the inference CBD had been paying Mr Gibson "secret commissions", as Mr Hatcher characterised matters, to give work to CBD. The evidence leads me to conclude this is a reasonably available inference. In circumstances where it appears reasonable to infer Mr Gibson was directing work to CBD in return for secret commissions, the TWU invited the Commission to conclude: (a) the work Mr Gibson referred to CBD otherwise would have been available to the drivers; and (b) the drivers' earnings were reduced during the relevant period as a result of Mr Gibson's referral of work to CBD, such as to adversely affect the drivers' redundancy payments. The TWU submitted Mr Gibson's redirection of work from the drivers to CBD formed a further basis on which it would be appropriate to depart from the standard formula in the Determination, more particularly in circumstances where most of the work was brought back to the drivers from outside transport providers after Blue Circle assumed the contract.
28 Mr Buis acknowledged a substantial amount of work was removed from the drivers as part of the run reduction and given to two outside courier companies. He explained the reason was that the sales department had "come up with a plan of delivery time" to meet the logistics of deliveries and market requirements, with the result that work was then given to outside companies. In this context, the issues involving Mr Gibson and CBD raise, in my view, difficult discretionary considerations concerning the application brought by the TWU as is concerns the proposed adjustment to the calculation formula. It seems reasonable to expect the earnings of the drivers, either individually or collectively, may have been, at least to some extent, adversely affected by the diversion of work to CBD - when that work otherwise may have been, or would have been, performed by Sigma's own drivers. To that extent, the drivers, either in individual cases or collectively, most likely suffered a financial detriment in terms of weekly earnings.
29 Mr Byrnes submitted Mr Gibson was off on a frolic of his own in relation to CBD. Indeed, it may be inferred that if Mr Gibson was receiving secret commissions to refer work to CBD, Sigma did not know about the payments. Certainly, there was no evidence to suggest otherwise. Mr Hatcher submitted Mr Gibson took advantage of the run restructure to outsource work to a company from which he was receiving secret commissions. If that is the case, Sigma may have an inappropriate windfall benefit from Mr Gibson's covert and otherwise unauthorised conduct, given the impact on the calculation of weekly pay for scale redundancy payments brought about by the diversion of work to CBD. On the other hand, it may be the case, as Mr Byrnes submitted, some or all of the work would, in any event, have been given to outside transport providers following the run reduction, but, if all other things had been equal, the work otherwise would have been given to CBD's business competitors. That is, it may be the case the volume of work given to outside transport providers rather than the drivers would have been no different following the run reduction, but that the CBD's competitors would have had a greater share of it.