The duty to ensure that care was taken in the design
48 As to the pleading concerning ensuring that care was taken in the design (paragraph 17K), there are a number of reasons why it is substantively defective.
49 First, the pleading alleges a failure to ensure that care was taken. This is a plea of a non-delegable duty. The pleading has the advantage of avoiding the language of "non-delegable duty" which can sometimes obfuscate more than it clarifies. In this context the pleading describes an undertaking that care and skill will be taken by the person who engages in the task: see Brookfield Multiplex Ltd v Owners Corporation Strata Plan 61288 [2014] HCA 36; (2014) 313 ALR 408, 441 [143] (Crennan, Bell and Keane JJ referring to Barclay v Penberthy [2012] HCA 40; (2012) 246 CLR 258, 284-285 [42]-[48]). Although senior counsel for the Sherrin Parties submitted that a claim based on a non-delegable duty of this nature would face insurmountable obstacles, I do not consider that this point is a suitable basis to refuse leave, particularly in the context in which Sherrin Hire has pleaded, and intends to plead, matters involving alleged undertakings and assumptions of responsibility by the Old Sherrin Company: Brookfield Multiplex Ltd (above); State of New South Wales v Lepore [2003] HCA 4; (2003) 212 CLR 511, 527-528 [20] (Gleeson CJ); 551-553 [100]-[105] (Gaudron J) 598-599 [254]-[256] (Gummow and Hayne JJ) 607-609 [285]-[293] (Kirby J); and Woodland v Swimming Teachers Association [2013] UKSC 66; [2014] 1 AC 537, 573 [7], 575-576 [11]-[12] (Lord Sumption).
50 In oral submissions, senior counsel for Sherrin Hire submitted that the plea was intended to include both a plea of a duty to ensure that the person who undertakes the task does it with care and a plea of a duty that the Old Sherrin Company will take care in performing the task. These should have been pleaded as alternative pleas for the fundamental reason that Sherrin Hire needs to identify the person which is said to have acted without sufficient care. Another reason why those duties must be separated is because the allegations of breach will relate to different conduct by different persons. For instance, the alleged duty in paragraph 17K concerns (i) the "preparation of the Old Sherrin Drawings" and (ii) the "directions, approvals and design undertaken as set out in paragraphs 17JE and 17JF". Point (ii) is concerned with directions, approvals and design undertaken by the TRT parties upon the instructions of the Old Sherrin Company. It is unclear whether the duty being alleged is one to take care in giving directions and approvals or whether it concerns a failure to ensure that the TRT parties took care in following those directions and approvals.
51 As for the duty to ensure that care was taken, this duty is premised upon a failure by some other person to take care. The identity of that other person (is it the TRT Parties, Panalam or some other person?), the reasons why that other person did not take care, and the allegation that this failure of care caused the defects are all matters that need to be pleaded. None of these was clearly pleaded.
52 There are numerous other difficulties with the plea concerning the duty to ensure that care was taken in the design of the EWPs. Many of these were the subject of exchanges between senior counsel and the bench during the hearing, and were often, and properly, the subject of concessions made by senior counsel for Sherrin Hire. These reasons should be read together with the matters raised during the hearing including in exchanges between the bar and bench during submissions for Sherrin Hire and submissions for the Sherrin Parties. Some of these difficulties include:
(1) any duty to take care in relation to giving careful instructions, directions, and approvals is pleaded by reference to paragraphs 17JE and 17JF. But those paragraphs are expressed at a very high level of abstraction. In some instances, senior counsel accepted that the pleas were incorrect. For instance, alleged negligence in "approving parts of the design" was said to mean negligence in approving "all of the design".
(2) The particulars to paragraphs 17JE and 17JF are much more detailed but they are expressed by reference to evidence which has been filed. They should be reformulated so that they can stand alone and so that they clarify the facts upon which Sherrin Hire relies.
(3) In paragraph 17KA, which identifies the "salient features" of the relationship between Sherrin Hire and the Old Sherrin Company, there is an immediate need to separate those salient features that relate to the non-delegable duty and those salient features that relate to the duty of the Old Sherrin Company to take care in preparing the design. Those salient features that relate to both (such as paragraph 17KA(b)) should be pleaded in relation to each duty separately. Additional information will be required, for example, in relation to the salient feature that the Old Sherrin Company had control over its subcontractors and suppliers for the purposes of the duty to ensure that care was taken. Who are those subcontractors and suppliers over which it is said to have control? How does the control arise? Further, the allegation in that paragraph (as well as paragraph 17LB(b)) that Sherrin Hire was the manufacturer of the EWBs should be removed. It was common ground (and is pleaded in paragraph 17K) that the TRT Parties were the manufacturer of the EWBs.
53 As for the duty of the Old Sherrin Company to take care in its design, it appears that this is the duty to which the pleaded breach in paragraph 17L refers.
54 But it is unclear what matters are relied upon as constituting the Old Sherrin Company's work in designing. One matter that is clearly pleaded is a provision of drawings by the Old Sherrin Company. But the plea of breach also cross-refers to paragraphs 17JA, 17JB, 17JE, and 17JF. It is unclear whether any other allegations arise from these paragraphs of design work by the Old Sherrin Company. For instance, is the reference in paragraph 17JF(d) ("designing the EWP basket") intended as a reference to design work done by the Old Sherrin Company or as a reference to design work done by the TRT parties but based on instructions or directions from the Old Sherrin Company? The omission of paragraph 17JD also appears to be intentional. That paragraph concerns the provision by the Old Sherrin Company to the TRT Parties of a disc containing calculations, machine specifications, and a 3D model of an EWP. Senior counsel for the Sherrin Parties submitted that although this disc was provided by the Sherrin Parties, the content of the disc came from a different person apparently described as Snorkel.
55 It may be that the duty of the Old Sherrin Company to take care in designing the EWPs is intended to include a duty to take care in issuing instructions and directing changes to be made to the design. If so, then these should also be pleaded. It is not sufficient to assert, as part of the recitation of facts and with the citation of considerable evidence, that instructions were given on occasion (paragraph 17JE and also paragraph 17JF(c)). The duty to take care in issuing instructions must be specifically pleaded. The instructions must be identified. Who gave them? When were they given? To whom were they given? If evidence has already been led on these matters, as particularised in the pleading, then these should not be difficult matters to plead.
56 There is, however, another difficulty which would arise even if the duty in paragraph 17K had been pleaded as a duty upon the Old Sherrin Company to design the EWPs with care. This is that there is no plea of causation between the alleged failure by the Sherrin Parties to take care in design through the drawings and the defects in the ultimate design of the EWPs. This is not a matter which could be implied. It must be expressly pleaded. It is likely that there will be real dispute on this point. The Sherrin Parties say that the design changed after the drawings were made by the Old Sherrin Company. They assert that this matter is common ground. In any event, they point to the absence of any of the detail in the drawings which can be related to any of the design defects. The same point can be made about any pleading of breach of a duty to take care in issuing instructions. There would then need to be a pleading of how particular defects would have been avoided if the TRT Parties had followed the instructions, communications, or directions. If the defects that would be avoided are intended to be pleaded as those particulars in paragraph 17L then those particulars should be allocated to the particular breach (ie whether they were matters that the Old Sherrin Company designed, or gave instructions for the design, or owed a duty to ensure that the TRT Parties carefully designed). None of this is sufficiently pleaded.