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Democratic Alliance v President

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Democratic Alliance v President of the Republic of South Africa and Others (often called Simelane) is a 2012 Constitutional Court case in South Africa. The court said that when the president uses executive power, both what he decides and how he decides it must be rational and lawful.

Background
- In 2009 President Jacob Zuma appointed Menzi Simelane as the National Director of Public Prosecutions (NDPP), head of the National Prosecuting Authority.
- The Democratic Alliance, the main opposition party, challenged the appointment. They argued Zuma ignored concerns about Simelane’s integrity, including doubts raised by the Ginwala Commission of Inquiry. The Ginwala findings were referred to the Public Service Commission, which recommended a disciplinary inquiry, but that didn’t happen.
- The Gauteng High Court dismissed the challenge. The Supreme Court of Appeal (SCA) later unanimously held that Simelane’s appointment was irrational and unconstitutional, and it ordered the appointment set aside. The case then went to the Constitutional Court for final judgment.

Constitutional Court ruling
- On 5 October 2012 the Constitutional Court confirmed the SCA’s order of unconstitutionality.
- The court expanded the idea of rationality review: not only must the substance of a decision be rational, but the process by which the decision is made must also be rational and related to the purpose of the power to be exercised.
- Acting Deputy Chief Justice Zak Yacoob outlined a three-step test for when a decision-making process ignores relevant information:
1) Are the ignored factors relevant?
2) If ignored, is the failure to consider them rationally related to the purpose of the power?
3) If not, does ignoring relevant facts taint the entire process and make the final decision irrational?
- Applying this to Simelane, the court looked at section 9(1)(b) of the National Prosecuting Authority Act, which requires the NDPP to be a “fit and proper person.” By ignoring prima facie evidence of Simelane’s dishonesty, the President acted inconsistently with the purpose of appointing a fit and proper person, making the appointment irrational.

Concurring views
- Justice Zondo agreed with the outcome but wrote separately to express concerns about whether the Public Service Commission’s process respected Simelane’s right to be heard (audi alteram partem).

Significance
- The case strengthens judicial oversight of executive power by requiring that both the reasons for a decision and the way the decision is reached must be rational and lawful. Process matters can render an executive decision invalid just as the substance can.


This page was last edited on 3 February 2026, at 00:38 (CET).