The DA’s challenge centred on its argument that the provision is irrational, arbitrary and serves no legitimate purpose. The DA also challenged the constitutionality of this provision on the basis that it violated several guaranteed rights entrenched in the Bill of Rights, without the Minister and the Department of Home Affairs (respondents) first satisfying section 36 of the Constitution of the Republic of South Africa, 1996 (Constitution).
The respondents defended this application on the basis that the Government has the right to regulate the process by which citizenship is acquired or lost and how dual citizenship can be obtained.
While this application sought only to challenge the constitutionality of section 6(1)(a) of the Act, in its analysis, the court also considered section 6(2) of the Act as the two sections are intertwined. Section 6(2) of the Act regulates the process in which citizenship can be retained.
The court also considered section 3(3) of the Constitution which regulates the loss of citizenship and expressly states that national legislation must provide for the acquisition, loss and restoration of citizenship. In addition, the court considered that section 20 of the Constitution prohibits the deprivation of citizenship, which is not specifically regulated in section 3(3) of the Constitution. The wording of section 20 of the Constitution is of fundamental importance. While it prohibits the deprivation of citizenship, it does not prohibit the loss of citizenship.
Deprivation versus loss of citizenship
For purposes of this judgment, the court distinguished between deprivation and loss of citizenship. Deprivation of citizenship was held to have the consequence of statelessness, while the loss of citizenship was only triggered by the acquisition of the citizenship of another country.
In challenging the constitutionality of section 6(1)(a) of the Act, the DA argued that many citizens were unaware of the application of this section when they lost their citizenship, and this argument was supported by an online survey it conducted with people who had lost their citizenship.
On the DA’s assertion of irrationality, the court applied the test for rationality, namely an analysis of the relationship between the means employed to achieve a particular purpose compared to the legitimate end itself. In applying this test, the court held that the purpose of section 6(1)(a) of the Act was to regulate the circumstances under which citizenship may be lost. It further held that when a person voluntarily acquires the citizenship of another country and does not follow the process of retaining their citizenship, it can hardly be said that such a loss is irrational. Sections 6(1)(a) and 6(2) of the Act strike a balance between the personal choices of an individual and those of the state, as well as the public purposes that are linked to the status of citizenship. This is the legitimate end that section 6(1)(a) seeks to achieve and can therefore not be seen to be irrational.
The court therefore held that section 6 of the Act was not vague as it clearly provides for an opportunity to obtain dual citizenship, as well as the consequences of obtaining a second citizenship. The results of the online survey were therefore not sufficient to support the argument of unconstitutionality, as citizens involved in relocation to other countries, with the possibility of acquiring citizenship there, must acquaint themselves with that area of the law.
On the DA’s assertion that section 6(1)(a) of the Act deprives a citizen of their citizenship, which is specifically prohibited by section 20 of the Constitution, the court noted that the DA was conflating the concepts of deprivation and loss of citizenship. While any deprivation of citizenship must be justified by section 36 of the Constitution, the same is not applicable to the loss of citizenship, and section 20 does not prohibit the loss of citizenship. The court therefore held that section 20 of the Constitution was not applicable to the loss of citizenship and that the DA’s reliance on it was misplaced.
The DA argued that the application of section 6(1)(a) also limits several other rights, including the right to vote and enter and leave South Africa, which only accrue to citizens. The automatic loss of citizenship therefore has a ripple effect on the protections that would otherwise ordinarily be afforded to South African citizens.
In determining whether section 36 of the Constitution was applicable to section 6(1)(a) of the Act, the court held that the loss of citizenship results in a change of status and because of that, the former citizen is no longer entitled to the benefits of that citizenship. The former citizen’s rights are therefore not limited because their citizenship was lost after acquiring the citizenship of another country, without applying to retain their South African citizenship. No section 36 enquiry is therefore triggered in these circumstances.
The court held that should its conclusion be incorrect, with the effect that section 6(1)(a) does not result in the limitation of rights but in a lawful change of status with the respective consequences that go with it, the provisions of section 36 may apply. Section 36(1) of the Constitution states that the rights set out in the Bill of Rights may only be limited in terms of the law of general application, while section 36(2) creates a general prohibition against any law that may limit a right entrenched in the Bill of Rights, subject to a limitation in terms of section 36(1) or in any other provision of the Constitution. A challenge to the limitation of any right may therefore be met by satisfying the criteria set out in section 36(1) of the Constitution or by showing that the Constitution itself permits such a limitation.
Section 3(3) of the Constitution expressly recognises that citizenship may be lost and records that the loss of citizenship must be regulated by national legislation. The Act is the legislation that regulates the loss of citizenship. On this basis, the court found that section 36(2) of the Constitution was therefore applicable to this dispute, and not section 36(1).
In support of its finding, the court relied on Azanian Peoples Organisation and Others v President of the Republic of South Africa and Others (CCT17/96)  ZACC 16 wherein it was held that “an argument that a provision of a statute constituted a violation of a right would be adequately met by a defence that the Constitution itself permitted such a violation”. In applying this dictum together with the provisions of sections 3(3) and 36(2) of the Constitution, the court held that, to the extent that it can be said that section 6(1)(a) of the Act results in a limitation of rights, then the limitation is specifically permitted by the Constitution.
The DA’s application was accordingly dismissed.
This judgment confirms that all citizens who voluntarily choose to acquire the citizenship of another country will automatically lose their citizenship, together with all the rights associated with such citizenship, by operation of law, unless they apply to retain their citizenship.