Extradition from Portugal to China: defending against a Red Notice

On paper, Portugal and China have no formal bilateral extradition treaty. In practice, that absence does not protect anyone. China has become one of the most active users of INTERPOL's Red Notice system, and Portugal's courts have received – and ruled on – Chinese extradition requests routed through international legal assistance channels. If you are in Portugal and a Red Notice has been issued at China's request, the question is not whether the risk exists. The question is what can actually be done about it, and how quickly.

Extradition from Portugal to China is not automatic, and in our practice it faces serious – often decisive – obstacles. A Red Notice is a request to locate and provisionally detain a person with a view to extradition; it is not an arrest warrant and not a judicial decision. Portugal's extradition law, human-rights commitments under the European Convention on Human Rights, and INTERPOL's own Constitution all provide grounds to resist both the notice and any resulting extradition request. The realistic prospects depend on the specific allegations, the evidence, and the quality of the legal response at every stage.

This analysis addresses the treaty position, the grounds that carry real weight in this corridor, the interaction between the Red Notice and extradition proceedings, and the honest limits of each line of defence. As of mid-2025, the pattern of Chinese requests through Portugal has remained consistent: the risk is real, the defences are real, and the sequencing matters enormously.

What is the treaty basis – and does its absence help you?

There is no bilateral extradition treaty in force between Portugal and China. That is the starting point, and it matters. Without a treaty, extradition can only proceed through a different legal channel: a specific agreement reached on a case-by-case basis under Portugal's domestic extradition law, or through multilateral arrangements applicable to the specific offences alleged. In practice, the Portuguese courts require a formal request through diplomatic channels, and the absence of a treaty means Portugal is under no legal obligation to surrender any individual to China.

That said, the absence of a treaty is not an impenetrable shield. Portugal's extradition law allows the executive branch and the courts to consider ad hoc surrender where reciprocity is offered and where the Portuguese constitutional and legal requirements are satisfied. China has pursued that route in other European jurisdictions. The response of Portuguese courts has been cautious, and in several instances – based on human-rights concerns – requests have not proceeded to surrender.

What the absence of a treaty does give you is significant procedural leverage. Every procedural step requires active political and judicial engagement on the Portuguese side. Nothing happens automatically. That creates windows for legal intervention that do not exist in treaty-bound corridors, and it places the burden squarely on the requesting state to demonstrate that its request meets Portugal's domestic standards.

How does a Chinese Red Notice interact with extradition in Portugal?

A Red Notice triggers the practical mechanism but does not determine the legal outcome. When China issues a Red Notice through INTERPOL, Portuguese border authorities and police are alerted. If you are identified, provisional arrest is possible under Portugal's extradition law, pending a formal extradition request from Beijing. That window – between arrest and the arrival of a formal request – is where the first decisive steps must be taken.

The Red Notice itself can be challenged independently before the Commission for the Control of INTERPOL's Files (CCF). That is a separate track from the extradition proceedings in the Portuguese courts, and both must run in parallel. Allowing the notice to stand unchallenged while fighting extradition is a strategic mistake we see regularly: a notice that has not been addressed remains visible to every border authority in the world, regardless of what the Portuguese court decides.

In our practice, the strongest position combines an immediate CCF challenge with a simultaneous extradition defence in Portugal. The two are not duplicative – they target different things. The CCF challenge attacks the data INTERPOL holds under the RPD's data-accuracy and data-quality requirements, and under Article 3 of INTERPOL's Constitution, which bars notices linked to offences of a political, military, religious or racial character. The extradition defence attacks the legal basis for surrender under Portuguese domestic law and international human-rights standards. A successful CCF deletion weakens the extradition request. A failed extradition proceeding does not, by itself, produce a deletion.

In a matter involving a CIS-issued notice with similar political characteristics (autumn 2024), we obtained CCF deletion while separate domestic proceedings were still pending – which in turn caused the requesting state's extradition file to collapse. The sequencing was the strategy.

What human-rights grounds actually carry weight in Portuguese courts?

Portugal is a Council of Europe member state and a signatory to the European Convention on Human Rights. Its courts apply those obligations when assessing any extradition request. In the China corridor, several grounds have real purchase – not as abstractions, but as legally operative obstacles.

The most significant is the risk of treatment contrary to the prohibition on torture or inhuman or degrading treatment. Reliable reporting from human-rights bodies documents serious concerns about detention conditions and fair trial standards in the People's Republic of China. Portugal's courts are required to assess whether surrender would expose the individual to a real risk of such treatment. Where that risk is evidenced – through country condition reports, individual circumstances, or the nature of the charges – it can defeat the extradition request.

The right to a fair trial is a second distinct ground. Chinese criminal proceedings are characterised, in the international human-rights literature, by very high conviction rates, restrictions on defence counsel access, and limitations on the right to challenge evidence. Where the specific individual can demonstrate a personal risk of an unfair process – not a general assertion, but a case-grounded argument – Portuguese courts will give that weight.

Non-refoulement is a separate and independent obligation. If the individual holds refugee status, or has a well-founded fear of persecution on grounds covered by the Refugee Convention, Portugal's obligations under that Convention and under the EU's asylum acquis are engaged independently of the extradition analysis. Refugee status does not automatically block extradition in every legal system, but in Portugal it creates a strong procedural obstacle that requires the court to engage with the asylum decision before any surrender can take place.

Article 2 of INTERPOL's Constitution mirrors these concerns at the INTERPOL level: it requires that INTERPOL's activities respect human rights, in the spirit of the Universal Declaration of Human Rights. A CCF challenge grounded in Article 2 complements the extradition defence and gives the legal arguments two separate institutional audiences.

Does dual criminality apply, and how is it assessed in this corridor?

Dual criminality is a foundational requirement of Portuguese extradition law. The conduct alleged must constitute a criminal offence under Portuguese law – not necessarily the same offence, but the same underlying act, assessed at the level of the essential elements. For many categories of Chinese charges, that condition creates real problems for the requesting state.

Economic offences under Chinese criminal law sometimes carry formulations without a direct Portuguese equivalent. Offences defined by reference to disruption of socialist economic order, endangerment of state interests, or broadly drawn corruption provisions may not map cleanly onto Portuguese criminal law categories. Where they do not, dual criminality fails and extradition cannot proceed on those counts.

The analysis is fact-specific. We regularly see files where some counts satisfy dual criminality and others do not. That has tactical importance: if the charges that survive dual criminality are minor relative to those that fail, the political and practical case for proceeding with surrender weakens substantially.

In an extradition matter in Southern Europe (spring 2025), a requesting state's file fell apart on dual criminality when Portuguese-equivalent analysis was applied count by count. The court declined to proceed on the counts that failed, and the residual request was ultimately not pursued. The lesson is that dual criminality is not a checklist – it is a serious forensic exercise that requires care on the detail of each allegation.

What is the rule of specialty, and can it help you?

The rule of specialty holds that if a person is surrendered, they may only be tried or punished for the offences that formed the basis of the extradition. They cannot be surrendered for one charge and then prosecuted for something different once they arrive. It is a protection embedded in Portugal's extradition law and in general public international law principles governing extradition.

In the China corridor, the rule of specialty matters because the gap between the formal extradition charge and what actually happens on arrival in the People's Republic is a documented concern. Where there is credible evidence that the requesting state intends to use the extradition process to bring the individual within reach for prosecution on entirely different matters – political cases, for instance, dressed in an economic allegation – the specialty argument supports the human-rights case, and the two reinforce each other before the Portuguese court.

The rule of specialty is also relevant to the CCF analysis. The RPD's data-accuracy requirements mean that notices cannot be used as instruments for purposes other than the stated extradition objective. Where a notice is shown to serve a collateral purpose, that is a ground for deletion.

What are the common mistakes, and what should you avoid?

The most destructive mistake is waiting. If you are in Portugal and aware of a Chinese Red Notice – or have reason to believe one may be sought – the time to act is before an arrest, not after it. Once provisional arrest is made, you are in a detention-and-hearing sequence that has its own statutory timelines, and the first hearing is where the trajectory is set. Arriving at that hearing without a prepared file is a position we have never seen recover well.

The second mistake is treating the CCF and the extradition proceedings as alternatives. They are not. They are simultaneous tracks with different targets, different timelines, and different consequences. A decision to pursue only one is almost always a strategy error.

A third mistake is building the human-rights argument on general country conditions alone. General conditions are the floor, not the ceiling. Portuguese courts require a case-grounded argument: why this individual, facing these charges, in these specific circumstances, faces a real risk. That requires evidence – documentary, witness, expert – assembled before the hearing, not during it.

Finally: a weak CCF file does lasting damage. There is no appeal against a CCF decision. A first request that fails on poor argumentation or thin evidence does not disappear; a review requires new elements, and the bar is higher. The quality of the initial submission is not a procedural formality – it is, in practice, the only real opportunity.

Is the political-motive ground realistic in Chinese cases?

Yes, in the right circumstances. Article 3 of INTERPOL's Constitution bars the processing of any notice linked to offences of a political, military, religious or racial character. INTERPOL has interpreted that prohibition broadly enough to capture cases where the dominant purpose of a prosecution is political, even where the formal charge is economic or financial.

China is the requesting state in a significant proportion of the Red Notices that the CCF has examined on political-character grounds. The pattern of use – targeting critics of the government, businesspeople who have fallen out of political favour, members of minority groups, and individuals whose prosecution is timed to prevent their cooperation with foreign authorities – is well documented in public reporting and in the human-rights literature.

What Article 3 requires is not proof of political motivation beyond doubt. It requires evidence that raises a substantial question about whether the dominant character of the request is political. That evidence can come from: the individual's background and profile; the timing and context of the investigation; the identity and statements of officials involved; comparator prosecutions of similarly situated individuals; and the pattern of treatment of the relevant group. In our experience before the CCF, the strongest Article 3 files are those where the evidence is specific, organised, and presented in a form that directly addresses the CCF's own analytical framework – rather than simply asserting that China uses INTERPOL abusively.

The honest position is this: not every case has an Article 3 ground. Where the prosecution is genuinely a commercial fraud, with no political dimension, the ground is unlikely to succeed. We assess Article 3 on the facts. We do not advance it as a formula.

Related

• Extradition from Portugal – the domestic process, timelines and legal standards explained
• Red Notice China – how Chinese Red Notices are issued and the grounds that work before the CCF
• Article 2 – Human Rights Ground – arguing human-rights violations to secure CCF deletion

The steps above sketch the general architecture of a defence in this corridor. Your situation turns on the specific file, the charges alleged, and whether you have already been arrested or are acting pre-emptively. That is precisely what an initial assessment addresses.

For an honest view of the grounds in your case and the realistic prospects in both the CCF and the Portuguese courts, write to us at info@northlarkfirm.com. The assessment is confidential, and our enquiry form does not require your real name. You can also reach us through a secure channel.

Frequently asked questions

Can I be released or bailed during proceedings?

Under Portugal's extradition law, provisional detention following arrest is not automatic in every case, and the court will consider whether conditions short of detention – reporting obligations, surrender of travel documents, or surety – are sufficient to ensure presence. The assessment turns on the specific charges, the individual's ties to Portugal, and the quality of the arguments made at the first hearing. Early, prepared intervention at that stage is consistently what makes the difference between detention and conditional liberty during proceedings.

Does dual criminality apply to my case?

Yes. Portugal requires that the conduct underlying the extradition request constitute a criminal offence under Portuguese law. Chinese charges must be examined count by count: some economic or regulatory offences under Chinese criminal law do not have an equivalent in the Portuguese criminal code, and those counts cannot support extradition. Where dual criminality fails on the principal charges, the entire request may be refused. The analysis requires a careful, charge-by-charge comparison and is not a formality.

What is the rule of specialty and does it help me?

The rule of specialty is the principle that a surrendered person may only be tried for the offence that formed the basis of the extradition. It is recognised in Portugal's extradition law and in general international law. In the China corridor, it supports the argument that a formally economic charge is being used to bring the individual within reach for a different – often political – purpose. That argument strengthens both the extradition defence and the CCF challenge under the RPD's data-accuracy requirements, because the notice would then not be serving its stated purpose.

About NORTHLARK

NORTHLARK is an independent international boutique acting exclusively for individuals facing INTERPOL Red Notices, diffusions and extradition proceedings. We work across jurisdictions and, where local proceedings require it, coordinate with allied counsel in the country concerned. We are fully independent – with no affiliation to any network or parent firm – which is a deliberate and protective feature for clients in politically sensitive matters.

We act only on lawful mandates. We do not help anyone evade legitimate justice, and we take on a matter only where we see genuine grounds.

The first assessment is confidential. Our enquiry form does not require your real name, and you can reach us through a secure channel – Signal, Telegram or WhatsApp – as well as by email at info@northlarkfirm.com.