Hong Kong National Security Regulation Raises Retroactive Procedure Concerns

HONG KONG — Hong Kong’s national security regulation has drawn attention because it gives procedural powers that can affect how investigations, arrests, bail decisions, and even trial formats are handled in certain cases. According to Jose-Antonio Maurellet SC, chairman of the Hong Kong Bar Association, the subsidiary rule does not create a new offense, but it does open the door for legal mechanisms to apply to cases involving events that happened earlier.

Writing in the online Legal Tales column, Maurellet said the regulation must be treated seriously and applied with care. He argued that even without adding any new criminal element, the impact can still be significant because a certificate issued by the chief executive may change how a case is processed.

National security regulation and the chief executive’s power

The Hong Kong government recently enacted the Safeguarding National Security (Procedural Matters) Regulation. The rule is meant to clarify the scope of Article 7(d) of the Safeguarding National Security Ordinance, or SNSO. In practical terms, it explains when certain procedural mechanisms can be used in national security-related cases.

Public attention has centered on Article 1(2)(a). Under that provision, if the chief executive issues a certificate, a case may be treated as one mentioned in Article 41 of the Hong Kong National Security Law, regardless of whether the act, prosecution, or legal process happened before, at the same time as, or after the security law took effect.

Maurellet said that framework is not unusual in several common law jurisdictions. National security and foreign affairs are often placed in the executive branch, not the courts, because they involve urgency and state secrecy. In such situations, he said, it is not always practical for every decision to be disputed in court first.

Impact on investigations, detention, and trials

What makes the regulation sensitive is its effect on legal procedure, not on the underlying criminal offense. If a certificate is issued, the SNSO’s procedural mechanisms may apply to a case that is believed to involve conduct before the subsidiary rule existed. That means the way police investigate, the way prosecutors proceed, and the way courts handle bail or trial format may all change.

For residents, that raises a basic question of legal certainty. When procedural rules can reach back to earlier events, people want to know where the limits are, who makes the call, and why. In Maurellet’s view, precisely because the impact is real, the new power must be used with great caution.

He said the chief executive was right to stress that the new authority would be used “seriously” and with “prudence,” or caution. That approach, he said, makes sense because the decision to issue a certificate can shape the entire course of a case, including situations where someone may not even have been charged when the rule came into force.

Free expression also comes under scrutiny

Maurellet also linked the regulation to basic rights protected under the Basic Law, including freedom of expression and freedom to report news. He stressed that rights and public perceptions of rights often move together. Once public perception shifts, social and economic realities can shift as well.

In his view, preserving the perception that basic rights remain protected matters for Hong Kong’s economy and its standing in the world. The city, he said, also needs to protect its way of life. At this point, balance becomes the key. National security still has to be safeguarded, but the space for rational opinion and professional journalism should not shrink without a clear reason.

That point frames the national security regulation not just as a legal product, but as a test of public confidence. When people believe the legal process can be explained openly, trust tends to hold up better. When the reasoning behind a power is left unclear, misunderstandings can spread quickly.

Transparency over certificates seen as important

Maurellet urged that, in the rare cases where a certificate is actually issued, the reason should be explained as far as possible without compromising national security. He argued that a proper explanation would help the public understand why the power was used and why the step was considered necessary to protect the state.

For Hong Kong, the issue is not minor. Rules tied to national security are often read as a signal about the relationship between the state, the local government, the courts, the media, and the public. For that reason, the way authorities explain the application of the new rule may also affect the confidence of businesses, legal professionals, and journalists.

More broadly, Maurellet said that the balance between security and liberty, the ability to express views reasonably, and responsible reporting can all serve as a source of soft power for Hong Kong. That is why, he argued, the national security regulation should be applied in a way that remains proportionate, as transparent as possible, and consistent with the basic legal principles in force.

Jose-Antonio Maurellet SC, who serves as chairman of the Hong Kong Bar Association and practices as a commercial litigation lawyer, set out his view in the weekly Legal Tales column. His remarks suggest the debate over Hong Kong’s national security regulation is unlikely to fade, especially if the government begins using the certificate power in real cases ahead.

If that practice does begin, the public and the legal community will be waiting for one thing above all: how far the government can explain each step without weakening the core of national security itself.