The doctrine of separation of powers is a fundamental tenet of constitutional governance, designed to prevent the concentration of authority by dividing government functions among three distinct branches: the executive, legislature, and the judiciary. Montesquieu articulated this principle in The Spirit of Laws (1748) where he argued that freedom cannot exist when judicial power remains joined with legislative and executive authority. In Malaysia, this principle is adapted through the Westminster parliamentary system, which creates a modified separation rather than a strict division. Because Cabinet ministers must be sitting members of Parliament, executive dominance over the legislature is entrenched, making the judiciary the only branch capable of checking constitutional excess (Federal Constitution, Article 4(1)).
This dominance is further entrenched through ouster clauses in statutes such as the Prevention of Crime Act 1959 (POCA) and Security Offences (Special Measures) Act 2012 (SOSMA), which attempts to shield executive actions from judicial review, raising serious constitutional concerns. Moreover, the executive has historically abused its amendment powers under Article 159, using its two‑thirds majority in Parliament to alter the Constitution for political ends, most notoriously in 1988, when it amended Article 121(1) to strip the courts of their inherent judicial power.
Within this framework, the judiciary plays a particularly vital role. It is entrusted with interpreting the Constitution, resolving disputes, and protecting fundamental freedom against encroachment by the executive or legislature. Courts function as guardians of constitutional supremacy, ensuring that laws and governmental actions remain consistent with the nation’s highest legal document. Harding (2012) emphasized that judicial review in Malaysia is central to maintaining the rule of law, while Shad Saleem Faruqi (2008) highlighted that judicial independence is indispensable for democratic accountability. Public confidence in the legal system depends on the judiciary’s ability to act not merely as a neutral arbiter of disputes but as a central institution that upholds constitutional democracy.
However, the development of the independence of the judiciary has not been entirely consistent, and this inconsistency itself remains a contentious issue in Malaysian constitutional law. The 1988 amendment to Article 121(1) removed the reference to the “judicial power of the Federation,” subordinating the judiciary to Parliament and exposing its vulnerability to executive interference. This crisis was compounded by the removal of Lord President Tun Salleh Abas and the suspension of senior judges, events that symbolized the erosion of judicial independence.
Nonetheless, the judiciary began reclaiming its role through the revival of the Basic Structure Doctrine. In Sivarasa Rasiah v Badan Peguam Malaysia & Anor [2010] 2 MLJ 333, the Federal Court recognized that fundamental constitutional principles cannot be undermined by legislative action. This revival was further strengthened in later cases such as Semenyih Jaya Sdn Bhd v Pentadbir Tanah Daerah Hulu Langat [2017] 3 MLJ 561 and Indira Gandhi a/p Mutho v Pengarah Jabatan Agama Islam Perak [2018] 1 MLJ 545, where the courts reaffirmed judicial independence and constitutional supremacy. The evolution of this doctrine demonstrates the judiciary’s resilience, insisting on the core values of separation of powers and the rule of law despite past setbacks. Yet, the extent to which the Basic Structure Doctrine can shield the judiciary from executive dominance remains a live debate, reflecting the ongoing tension between constitutional ideas and political realities in Malaysia.
This essay argues that Malaysia’s separation of powers is marked by a persistent debate between executive dominance and judicial independence. While the 1988 constitutional crisis and the amendment to Article 121(1) exposed the judiciary’s fragility under political pressure, the revival of the Basic Structure Doctrine in cases such as Sivarasa Rasiah (2010), Semenyih Jaya (2017), and Indira Gandhi (2018) demonstrates its resilience in reclaiming constitutional supremacy. The judiciary’s trajectory highlights the contentious struggle between ouster clauses, constitutional amendments, and the courts’ role as guardians of the rule of law.
The Constitutional Framework for Executive Dominance
The Malaysian Constitution, heavily influenced by the British Westminster model, does not adopt a strict separation of powers. Instead, it establishes a system of checks and balances built upon a 'fusion of powers' between the executive and legislative branches. This fusion is explicitly mandated by the Federal Constitution and forms the basis of executive dominance in the political system. The primary source for this arrangement is Article 43, which outlines the formation of the Cabinet. Article 43(1) states that the Yang di-Pertuan Agong (the King) shall appoint a Cabinet of Ministers, led by a Prime Minister, to advise him in the exercise of his functions. This body forms the core of the federal executive.
Crucially, Article 43(2) dictates the composition of this executive body by linking it directly to the legislature. Article 43(2)(a) requires the Prime Minister to be a member of the Dewan Rakyat (the elected House of Representatives) who, in the King’s judgment, "is likely to command the confidence of the majority of the members of that House." Following this, Article 43(2)(b) stipulates that all other Ministers in the Cabinet must be members of either the Dewan Rakyat or the Dewan Negara (the Senate). These provisions create an overlap in personnel and function, as the key figures of the executive are simultaneously leading members of the legislature. This arrangement ensures that the government of the day is formed by the political party or coalition that holds a majority in Parliament. As Shad Saleem Faruqi (2008) notes, this fusion means that the executive is not an independent branch but is instead a "committee of Parliament" that guides the legislative process. Consequently, the government can typically rely on party discipline and its parliamentary majority to pass legislation, approve budgets, and ratify policies, making the legislature a less effective check on executive power compared to systems with a stricter separation. This inherent constitutional design establishes a powerful executive, which sets the stage for the recurring tension with the judiciary, the only branch positioned to act as a truly external check on its authority.
The 1988 Constitutional Crisis and the Subordination of the Judiciary
The executive dominance constitutionally embedded within Malaysia’s political system reached its most controversial peak during the 1988 constitutional crisis. This period marked a direct assault on the judiciary’s independence, fundamentally altering the balance of power. The conflict stemmed from a series of court decisions that were viewed unfavourably by the executive arm of government, then led by Prime Minister Dr. Mahathir Mohamad. In response, the government used its two-thirds parliamentary majority to amend the Federal Constitution, most notably Article 121(1). Prior to the amendment, Article 121(1) vested the "judicial power of the Federation" in the High Courts and subordinate courts. This was understood to mean that judicial power was an inherent attribute of the judiciary, derived from the Constitution itself and not from any Act of Parliament (Harding, 2012).
The Constitution (Amendment) Act 1988 altered Article 121(1) by removing the phrase "judicial power of the Federation" and stating instead that the High Courts "shall have such jurisdiction and powers as may be conferred by or under federal law." The effect of this amendment was profound. It appeared to subordinate the judiciary to the legislature, suggesting that the courts’ powers were no longer inherent but were granted by, and could therefore be limited by, Parliament. Since the executive effectively controlled Parliament, this amendment made the judiciary constitutionally vulnerable to executive and legislative encroachment. This legal change was accompanied by the controversial removal of the Lord President, Tun Salleh Abas, and the suspension of five other senior Supreme Court judges. These events were widely seen as an executive move to weaken a judiciary perceived as too independent, thereby cementing the dominance of the executive branch and creating a 'chilling effect' on judicial decision-making for years to come (Means, 1991).
The Re-emergence of Judicial Power through the Basic Structure Doctrine
Despite the significant setback of 1988, the Malaysian judiciary gradually began to reclaim its constitutional authority through the incremental development and application of the Basic Structure Doctrine. This doctrine, which originated in India, posits that a constitution has certain fundamental features that cannot be amended or abrogated by the legislature, even through formal constitutional amendment procedures. For a long period after 1988, the doctrine had a limited presence in Malaysian jurisprudence. However, its revival was signalled in the Federal Court case of Sivarasa Rasiah v Badan Peguam Malaysia & Anor [2010]. In this case, the court, when interpreting fundamental liberties under Article 5(1) of the Constitution, held that fundamental rights are part of the basic structure of the Constitution and cannot be easily limited by ordinary legislation. While not directly concerned with the separation of powers, Sivarasa Rasiah was important for reintroducing the idea that the Constitution contains core principles that Parliament cannot override.
This principle was decisively applied to the separation of powers in the landmark case of Semenyih Jaya Sdn Bhd v Pentadbir Tanah Daerah Hulu Langat [2017]. The Federal Court revisited the 1988 amendment to Article 121(1). In a powerful judgment, the court held that the amendment could not take away the "core" or "inherent" judicial power of the civil courts. It reasoned that the separation of powers and the vesting of judicial power in the judiciary were fundamental features of the Constitution's basic structure. Therefore, Parliament did not have the power to remove this core judicial function, as doing so would undermine a pillar of the constitutional order. The court effectively interpreted the amended Article 121(1) as not having removed the judiciary's inherent power of judicial review, thereby 'reading down' the effect of the 1988 amendment. This decision was a direct pushback against the earlier subordination of the judiciary and reasserted the courts' role as the ultimate arbiters of the Constitution.
This judicial reassertion was further consolidated in Indira Gandhi a/p Mutho v Pengarah Jabatan Agama Islam Perak [2018]. In this case, the Federal Court addressed the validity of an ouster clause that sought to prevent civil courts from reviewing the decisions of Syariah administrative bodies. The court unequivocally declared that judicial review is a fundamental aspect of the rule of law and is itself part of the Constitution's basic structure. Consequently, any legislative attempt, including through an ouster clause, to remove the courts' power of judicial review over the actions of public authorities is unconstitutional and void. The Indira Gandhi judgment affirmed that the judiciary's role as a check on executive and administrative action is a non-negotiable part of Malaysia’s constitutional design. Together, Semenyih Jaya and Indira Gandhi demonstrate a clear and resilient trend in which the judiciary has used the Basic Structure Doctrine to restore its independence and reinforce its position as the guardian of constitutional supremacy against executive and legislative overreach.
Conclusion
In conclusion, the relationship between the branches of government in Malaysia is best understood as a continuous struggle between the constitutional design of executive dominance and the judiciary's role in upholding constitutional limits. The Westminster-style fusion of powers, enshrined in Article 43 of the Federal Constitution, inherently creates a powerful executive that controls the legislative agenda, leaving the judiciary as the primary check on governmental power. The 1988 constitutional crisis and the amendment to Article 121(1) represented the lowest point in this dynamic, where the executive used its political might to formally subordinate the judiciary and erode its independence.
However, this narrative of decline has been met with a significant and resilient judicial response. The revival of the Basic Structure Doctrine in the 21st century, particularly through the landmark rulings in Semenyih Jaya and Indira Gandhi, marks a determined effort by the judiciary to reclaim its inherent constitutional power. By establishing that the separation of powers and judicial review are immutable features of the Constitution, the courts have pushed back against decades of executive encroachment. This judicial reawakening demonstrates a refusal to accept a subservient role, instead reasserting the judiciary's function as the ultimate guardian of the rule of law and fundamental liberties. Nevertheless, the tension remains. The judiciary's continued ability to withstand political pressure depends on the strength of this doctrine and the resolve of its judges, highlighting that the balance of power in Malaysia is not a settled state but an ongoing and contentious debate.
References
Federal Constitution of Malaysia.
Harding, A. (2012) The Constitution of Malaysia: A Contextual Analysis. Hart Publishing.
Means, G. P. (1991) Malaysian Politics: The Second Generation. Oxford University Press.
Montesquieu, C. (1748) De l'esprit des loix (The Spirit of Laws).
Prevention of Crime Act 1959 (Act 297).
Security Offences (Special Measures) Act 2012 (Act 747).
Shad Saleem Faruqi. (2008) Document of Destiny: The Constitution of the Federation of Malaysia. Star Publications.
Indira Gandhi a/p Mutho v Pengarah Jabatan Agama Islam Perak & Ors and other appeals [2018] 1 MLJ 545.
Semenyih Jaya Sdn Bhd v Pentadbir Tanah Daerah Hulu Langat and another case [2017] 3 MLJ 561.
Sivarasa Rasiah v Badan Peguam Malaysia & Anor [2010] 2 MLJ 333.
