A Deepening of Security Measures in Macau

The newly enacted bill significantly strengthens the powers of Macau’s Committee for Safeguarding National Security (CDSE), established in 2018 to advise the city’s leader on security-related matters. This legislation builds upon existing national security laws first implemented in 2009 and further expanded in 2023, reflecting a broader trend of increased security oversight by Beijing.

Macau, formerly a Portuguese colony handed back to China in 1999, operates under a “One Country, Two Systems” framework, granting it a degree of autonomy, including its own legal system rooted in Portuguese civil law. However, the implementation of these national security measures is increasingly blurring the lines of that autonomy.

The core of the new legislation centers on heightened restrictions for legal representation in national security cases. Defense lawyers will now be required to obtain explicit permission from national security officials, justified by the potential for classified information to be involved. This requirement raises concerns about potential interference with the attorney-client privilege and the ability to mount a robust defense.

The Macau government asserts that the bill “further strengthens the top-level framework for safeguarding national security” and embodies the principle of “patriots governing Macao.” However, analysts caution that these measures could negatively impact the functionality of government departments and erode the rights enshrined in Macau’s mini-constitution, the Basic Law.

The implementation of Macau’s national security law follows a similar pattern to that seen in Hong Kong, where a sweeping national security law imposed by Beijing in 2020 has led to a crackdown on dissent and a significant curtailment of freedoms. Human Rights Watch has documented a concerning trend of diminishing civil liberties across both regions.

In July 2025, Macau authorities arrested Au Kam San, a former legislator, under the national security law, marking the first known application of the legislation in the casino hub. The charges involved alleged foreign collusion, highlighting the broad scope of the law and its potential to target individuals perceived as critical of Beijing.

Considering the increasing restrictions on legal processes, what impact will this have on the perceived fairness and transparency of Macau’s judicial system? And how will these changes affect the business climate in a region heavily reliant on international investment?

Frequently Asked Questions About Macau’s National Security Law

1. What is the primary purpose of Macau’s new national security law? The law aims to strengthen the framework for safeguarding national security in Macau, granting greater powers to the Committee for Safeguarding National Security and imposing stricter controls on legal proceedings.
2. How does the new law affect defense lawyers in Macau? Defense lawyers involved in national security cases are now required to obtain permission from national security officials before appearing in court, raising concerns about potential interference.
3. What is the “One Country, Two Systems” framework? This framework, established when Macau was handed over to China, grants Macau a high degree of autonomy, including its own legal system, though this autonomy is increasingly being challenged.
4. What are the potential consequences of these changes for Macau’s legal system? Analysts fear the changes could undermine the independence of the judiciary, erode the rights guaranteed by the Basic Law, and diminish legal transparency.
5. Has this happened elsewhere in China? Similar national security legislation has been implemented in Hong Kong, leading to a crackdown on dissent and a curtailment of freedoms, suggesting a potential parallel trajectory for Macau.
6. What was the significance of the arrest of Au Kam San? The arrest of Au Kam San marked the first known use of Macau’s national security law, signaling a willingness to enforce the law against individuals accused of foreign collusion.