REASONS FOR JUDGMENT
SACKVILLE J:
71 I agree with the judgment of Wilcox and Finn JJ on the construction of s 4L of the Trade Practices Act 1974 (Cth) ('TP Act').
72 I also agree with their Honours' conclusion that the agreement embodied in the two letters of 10 September 1999 from Mansfield Swizer to AFS Freight Management (USA) Inc ('AFS USA') and to Australian Freight Services Ltd ('AFS') ('the Agreement') was illegal and that AFS USA's promise to repay the loan plus interest cannot be severed from the illegal portions of the Agreement. I agree generally with their Honours' reasons, but wish to set out my own reasoning on this issue.
73 The rules governing illegal contracts are notorious for their complexity and obscurity. These characteristics stem, in part, from the varied circumstances in which contracts can be said to be illegal: Cheshire and Fifoot's Law of Contract (8th Aust ed, 2002) at [18.1]. As Professor Rose has pointed out, the difficulties are exacerbated by the proliferation in modern times of rules and regulations. An agreement involving a contravention of any of these rules and regulations, perhaps even if inadvertent, may produce harsh consequences for a party which finds itself unable to enforce the contract: F D Rose, 'Reconsidering Illegality' (1996) 10 J Contract Law 271, at 273; see too N S Marsh, 'The Severance of Illegality in Contract' (1948) 64 LQR 230, at 233, arguing that tests as to the severability of illegal contracts which may have been reasonable when propounded have become highly artificial in changed social and legal conditions.
74 In the present case, the appellants have been sued on the guarantees they provided under a deed made on 23 December 1999. In that deed, the appellants guaranteed performance of the obligations of AFS USA under the Agreement. If the appellants are correct in the arguments advanced in this Court, they will effectively be relieved of their guarantees on the ground that the Agreement was illegal and thus AFS USA is not liable to repay the funds advanced to it by the lender, SST Consulting Services Pty Ltd ('SST Consulting'), pursuant to the Agreement. The lender will be denied recovery of the sum of approximately $1.5 million (including interest) advanced by it to AFS USA. Indeed, but for the fact that repayments totalling $419,523 were made by or on behalf of AFS USA, the loss sustained by SST Consulting as the result of the illegality relied on by the appellants (if their argument is correct) would be even greater.
75 The primary Judge summarised the appellants' pleading of their illegality defence as follows ([2004] FCA 937, at [29]):
'1. The advances by SST to the Borrower [AFS USA] were made pursuant to an overall agreement between SST [Consulting], Messrs Rieson and Bell, AFS and the Borrower, which included the following terms:
(a) Positive obligations to be performed by AFS and the Borrower and Messrs Rieson and Hill, as conditions of the making of the loan, were:
(i) AFS would direct all its pack and unpack LCL [full container load] business in Sydney, Melbourne and Brisbane, together with Sydney airfreight, to the corporations that SST [Consulting] should direct, such work to include transport.
(ii) AFS will [sic] enter into a deed whereby it will cause all its pack and unpack LCL transport in Sydney, Melbourne and Brisbane and Sydney airfreight to be directed to Port Botany/MPG and Pitkin facilities or as the nominee of SST [Consulting] shall direct.
(iii) All pack and unpack business in Sydney, Melbourne and Brisbane were [sic] to be directed to Port Botany/MPG facilities, in line with market conditions, for the life of the loan.
(b) The loan agreement would incorporate such terms as SST [Consulting] should require to secure their position in relation to the moneys advanced to AFS and the performance of AFS in relation to the use of Sydney, Melbourne and Brisbane services including transport and pickup.
(c) It would be an event of default should Messrs Rieson and Bell or AFS fail to direct all pack and unpack business in Sydney, Melbourne and Brisbane and Sydney airfreight to Port Botany/ MPG facilities including transport, or as SST [Consulting] should advise.
2. The Guarantee was provided as required by the terms of the overall agreement.
3. By the overall agreement the service of money lending was provided by SST [Consulting] to the Borrower only on condition that the Guarantee contained terms of default as required by the overall agreement.
4. An event of default stipulated in the Guarantee was the failure of the Borrower to carry out the positive obligations of the overall agreement, including those positive obligations set out above.
5. The requirements referred to above concerning pack and unpack business were requirements whereby AFS and the Borrower, being related companies, were required to acquire services from persons or corporations other than SST [Consulting] who provided those services at the Port Botany/MPG and Pitkin facilities in Sydney, Melbourne and Brisbane.
6. The Port Botany/MPG and Pitkin facilities in Sydney, Melbourne and Brisbane were owned or to be owned by MPG Logistics Ltd trading under various firm names.'
76 SST Consulting admitted each of these allegations. Moreover, as the primary Judge recorded, SST Consulting conceded at the hearing that, by reason of the matters pleaded, it had contravened s 47(1) of the TP Act.
77 A contract may be illegal because making or performing it is prohibited, expressly or impliedly, by statute. It may also be illegal because the making or performance of the contract is contrary to public policy. In the present case, the appellants argue that the arrangements recorded in the Agreement were prohibited by s 47(1) of the TP Act. In particular, they say that cll 2 and 3 of the letter addressed to AFS and cll 3(E) and 6 of the letter addressed to AFS USA were prohibited by the statute.
78 The letter of 10 September 1999 to AFS required it to enter a deed whereby it would cause certain freight to be directed to 'Port Botany/MPG and Pitkin facilities or as the nominee of the lender [SST Consulting] should direct' (cl 2). The deed was to incorporate such terms as the lender required to secure its position in relation to the moneys advanced and the performance of AFS in relation to the use of the facilities (cl 3). The letter to AFS USA defined a 'default event' to include a failure to direct the freight to Port Botany/MPG facilities or as the lender advised (cl 3(E)). AFS USA, like AFS, was required to acquire freight services as directed by the lender (cl 6).
79 Section 47(1) of the TP Act provides that a corporation shall not, in trade or commerce, engage in the practice of exclusive dealing. Section 47(6) relevantly provides that a corporation engages in the practice of exclusive dealing if it supplies or offers to supply services on the condition that the person to whom the corporation supplies or offers to supply the services, or a related body corporate, will acquire services of a particular kind from another person. The appellants say that SST Consulting offered to supply and did supply services (a loan to AFS USA of $1 million) on condition that AFS USA and AFS (a corporation related to AFS USA) would acquire packing and unpacking services from the Mayne Nickless Group which operated the Port Botany facilities. So much is conceded by SST Consulting.
80 It will be seen that s 47(1) of the TP Act (when read with s 47(6)) does not explicitly prohibit the making of a contract or arrangement of a particular kind. In this respect, it is to be contrasted with s 45(2) of the TP Act which prohibits a corporation from making a contract or arrangement if, inter alia, a provision of the contract has the purpose of substantially lessening competition. Nonetheless, it appears to be common ground that the effect of s 47(1) is implicitly to prohibit the making of a contract which incorporates an undertaking by a corporation to supply services to another corporation on condition that the recipient, or a related corporation, will acquire specified services from a third party. On this basis, s 47(1) of the TP Act prohibited the making of the Agreement since, by entering the Agreement, SST Consulting engaged in the practice of exclusive dealing: cf Yango Pastoral Company Pty Ltd v First Chicago Australia Ltd (1978) 139 CLR 410, at 423-424, per Mason J.
81 It is a matter for Parliament to determine the effect of a contract entered into in contravention of a statute. Where Parliament does not do so explicitly, it is usually said that the common law determines the consequences of the illegality (Carlton & United Breweries Ltd v Castlemaine Tooheys Ltd (1986) 161 CLR 543, at 554-555, per curiam), although it would seem that the process generally involves construing the relevant statute. Be that as it may, the ordinary rule is that if Parliament prohibits the making of a contract, the contract does not give rise to an enforceable right or obligation; if Parliament prohibits the performance of a contract, performance cannot be compelled: Trade Practices Commission v Milreis Pty Ltd (1977) 29 FLR 144, at 158-159, per Brennan J.
82 The authorities establish that the ordinary rule applies to contracts or arrangements entered into in contravention of s 45(2) of the TP Act, notwithstanding the existence of an express power in s 87(2) to declare void a contract made in contravention of the TP Act: TPC v Milreis Pty Ltd (1977) 29 FLR 144, at 150-152, per Bowen CJ; at 158-162, per Brennan J, approved in CUB v Castlemaine Tooheys Ltd, at 554-555. By parity of reasoning, once it is accepted that s 47(1) prohibits the making of an agreement by which a party engages in the practice of 'exclusive dealing', ordinarily the contract will not give rise to enforceable rights or obligations, and performance of the agreement cannot be compelled.
83 The ordinary rule is, however, subject to the doctrine of severance. This doctrine is designed, in part at least, to mitigate the harshness that may result from holding an illegal contract to be unenforceable. Because the parties to a contract do not usually provide for the possibility that the contract will be found to be illegal, it is necessary to formulate a test to determine whether the doctrine of severance can be invoked to save part of the contract: Amoco Australia Pty Ltd v Rocca Bros Motor Engineering Co Pty Ltd [1975] AC 561, at 578, per Lord Cross. Since the circumstances in which illegal contracts are entered into vary so widely, no single test of severance has been accepted: Brooks v Burns Philp Trustee Co Ltd (1969) 121 CLR 432, at 438, per Kitto J; Carney v Herbert [1985] 1 AC 301, at 309, per Lord Brightman.
84 In Australia, the test stated by Jordan CJ (with whom Davidson and Owen JJ concurred) in McFarlane v Daniell (1938) 38 SR (NSW) 337, is often cited. Jordan CJ said (at 345):
'When valid promises supported by legal consideration are associated with, but separate in form from, invalid promises, the test of whether they are severable is whether they are in substance so connected with the others as to form an indivisible whole which cannot be taken to pieces without altering its nature… If the elimination of the invalid promises changes the extent only but not the kind of the contract, the valid promises are severable… If the substantial promises were all illegal or void, merely ancillary promises would be inseverable.' (Citations omitted.)