Evaluate the view that the Supreme Court is an effective check on the executive and legislative branches

Weaker counterargument:
The Supreme Court cannot overturn Acts of Parliament and thus is limited in checking the legislative branch.
Explanation:
Parliament is sovereign in the UK constitution, meaning it can make or repeal any law. The Supreme Court interprets laws but cannot invalidate legislation passed by Parliament. This limits its power to check legislative authority.
Evidence:
The Court could not block the Rwanda Plan legislation despite legal challenges. Also, the Scottish Gender Recognition Reform Bill 2023 was vetoed by Westminster Parliament, not the Supreme Court.
Stronger argument:
However, the Supreme Court still effectively enforces parliamentary sovereignty by ensuring Parliament and the executive act within the law.
Explanation:
By reviewing whether government actions comply with the law and the constitution, the Court indirectly constrains Parliament’s and the executive’s excesses and prevents unlawful exercises of power.
Evidence:
In the 2016 and 2019 Miller cases, the Court affirmed that the government needed Parliament’s approval to trigger Article 50 and blocked Boris Johnson’s unlawful prorogation of Parliament, reinforcing legislative supremacy and legality.

Weaker counterargument:
The Supreme Court’s ability to check the executive is limited by the political and constitutional framework, which ultimately favors the executive and Parliament.
Explanation:
The executive often holds strong political power and can respond to judicial rulings by amending laws or using political means to achieve policy goals, reducing the Court’s practical impact.
Evidence:
Despite rulings like blocking prorogation in 2019, the government retained significant control, demonstrated by Parliament passing the Police, Crime, Sentencing and Courts Act 2022, which holds the executive accountable.
Stronger argument:
Nevertheless, the Supreme Court is a crucial independent institution that prevents the executive from acting ultra vires (beyond its powers) and upholds rule of law.
Explanation:
It stops unlawful executive actions, safeguarding democratic processes and individual rights against executive overreach.
Evidence:
The Court prevented Boris Johnson’s unlawful prorogation of Parliament in 2019, stopped the government from triggering Article 50 without Parliament’s consent in 2016, and challenged cases such as Abu Qatada (2012) that concerned human rights.

Weaker counterargument:
Critics argue the Supreme Court lacks political accountability, and its decisions can appear politically biased or controversial, undermining its effectiveness as a neutral check.
Explanation:
The judiciary is unelected and sometimes criticized for perceived liberal bias or involvement in politically sensitive cases, which can affect public confidence and raise questions about legitimacy.
Evidence:
Right-wing media attacks during the Miller cases, including the Daily Mail labeling judges “enemies of the people” in 2016, and criticism from politicians like Priti Patel and Dominic Cummings suggest political tensions over judicial rulings.
Stronger argument:
However, judicial independence, neutrality, and rigorous legal training ensure that the Supreme Court acts impartially and effectively as a constitutional check.
Explanation:
Justices undergo extensive legal training, recuse themselves where conflicts arise, and operate under rules like the Contempt of Court Act protecting judicial independence from political interference. Their decisions are often peer-reviewed and can be appealed to European courts.
Evidence:
The Constitutional Reform Act 2005 strengthened judicial independence by separating judges from Parliament and reducing executive influence via the Judicial Appointments Commission. The 2025 Lady Chief Justice letter warned against political threats, underscoring ongoing commitment to judicial neutrality.