Arorangi Timberland Limited and others v Minister of the Cook Islands National Superannuation Fund

A compulsory defined-contribution pension scheme may interfere with property rights without being unconstitutional. Article 40(1) was not engaged because contributions were invested for the employee’s benefit and remained vested. Article 64(1)(c) was engaged, but proportionality required an exacting four-stage analysis, not Wednesbury irrationality. The legislature received a generous margin on social and macro-economic policy. The absence of a government guarantee, constitutional entrenchment or early-withdrawal rights did not make the scheme disproportionate. Migrant workers were materially different from residents because they were required to participate but expected to leave before retirement. Allowing them to recover only their own contributions, while forfeiting vested employer contributions, lacked substantial justification. That provision was discriminatory and confiscatory and had to be read down.

Seven employees and employers challenged the constitutionality of the compulsory superannuation scheme established by the Cook Islands National Superannuation Act 2000. Weston CJ held at first instance that the scheme was unconstitutional. The Court of Appeal of the Cook Islands reversed that decision in [2014] CKCA 4.

Before the Privy Council, the appellants challenged the scheme generally because it lacked a government guarantee, constitutional entrenchment and broad early-withdrawal rights. They separately challenged section 53, which allowed short-term migrant workers to recover their own contributions but not employer contributions. The central questions were whether those features were disproportionate and whether section 53 unjustifiably discriminated against migrant workers or deprived them of property.

Disposition. By a majority, the Board dismissed the challenge to the scheme as a whole and allowed the challenge to section 53. Lord Sumption dissented in part on the migrant-worker issue.

1. Property rights. Compulsory contributions did not involve property being taken or a right or interest being compulsorily acquired under article 40(1). The contributions were invested for the employee’s benefit and remained vested in the employee. Their compulsory extraction from wages nevertheless amounted to a deprivation of property under article 64(1)(c).
2. Proportionality. The presumption that legislation should, if possible, be interpreted consistently with constitutional rights was accepted. A general presumption of constitutionality requires circumspection and places the burden on the challenger, but ordinarily adds nothing to the proportionality exercise. The majority adopted the four-stage approach in Bank Mellat v HM Treasury (No 2) [2014] AC 700. The intensity of review depends on context. Parliament was entitled to a generous margin when making social-policy choices with macro-economic and budgetary implications. Arbitrariness or Wednesbury irrationality was not the appropriate test.
3. The scheme generally. Its objective of improving retirement security was sufficiently important and rationally connected to the scheme. The protections provided by the Act and Trust Deed, including independent trusteeship and vested ownership, meant that the absence of a government guarantee or entrenchment did not make the scheme disproportionate. The absence of early-withdrawal rights was also a legitimate legislative policy choice.
4. Migrant workers. Migrant workers were a distinct social group. They were required to participate in the scheme but were expected to leave before retirement. Section 53 recognised that position only partially. Its retention of vested employer contributions lacked substantial justification, failed to strike a fair balance, and was both discriminatory and confiscatory. The Board rejected the relevance of Pillai v Mudanayake [1953] AC 514 and disapproved the approach attributed to Clarke v Karika [1985] LRC (Const) 732.
5. Relief. The Board proposed reading section 53(2) as if the word employee were deleted before contributions in both places, and treating section 53(3) as deleted. Written submissions on the precise declaration and costs were invited within 28 days.

Lord Sumption considered the limitation legitimate. Migrant workers had the same deferred pension rights as residents, together with an optional early-withdrawal right. In his view, forfeiture of employer contributions was a permissible policy choice.

• Privy Council: The appeal was dismissed on the challenge to the scheme as a whole and allowed on the challenge to section 53.
• Court of Appeal of the Cook Islands: The Court reversed the first-instance decision and rejected the constitutional challenges: [2014] CKCA 4.
• First instance: Weston CJ held on 31 January 2014 that the scheme established by the Cook Islands National Superannuation Act 2000 was unconstitutional.