It’s the nature of academic articles that by the time they’re published you’ve almost forgotten that you wrote them, particularly if the journal is an annual. It is therefore pleasantly surprising that as my article on ‘Sharing Evidence Across Borders: the human rights challenge’ is published ((2012) 30 Aust YBIL 161), I find that the topic is still very much current and the questions raised are still relevant, possibly even more so than when I wrote it a couple of years ago. Being able to transfer evidence between countries is essential for cross-border investigations and prosecutions. Even aside from crime types that are obviously transnational in nature such as drug trafficking or international money laundering, everyday crimes are easily given a ‘transnational’ aspect if the criminals use international email providers, have a foreign bank account or if a key witness lives in another country. Clearly, public policy dictates that investigations and prosecutions can’t be allowed to stop at the border. To fill this gap Mutual Legal Assistance Treaties (MLATs), law enforcement cooperation and letters rogatory have developed. However, transferring evidence into another jurisdiction can have significant human rights implications.
After authorities in one country hand evidence over to another country, they may lose control and visibility of how that evidence is used. And yet, instinctively, it seems like a country should not be able to wash its hands of all responsibility after handing over evidence. When legal cooperation is used to move people rather than evidence (ie extradition), there are very clear human rights protections. An abolitionist country cannot extradite or deport a person to a country if there is a real risk that he or she may be subject to the death penalty. Similar obligations arise if a country wishes to extradite a person to a country where there is a real risk of a person being subject to torture or to cruel, inhuman or degrading treatment or punishment. However, there is no such obligation if one country provides evidence to another country and that country then uses the information to impose the death penalty, torture or other cruel, inhuman or degrading treatment or punishment on an individual.
Many see this as unjust and there is a temptation to extend the international law that applies to extradition to MLATs and law enforcement cooperation. After all, the consequences for individuals can be just as dire when countries share evidence as when they cooperate for extradition. However, if you carefully analyse the extradition jurisprudence and try to apply it to evidence-sharing, you encounter a number of significant logical and legal problems.
In order to be practical and politically-palatable, there must be limits on a country’s human rights obligations. International human rights law obligations are therefore generally limited to persons within that country’s jurisdiction. When evidence is provided to foreign countries, it usually affects individuals in the foreign country. It is difficult to find a logical way to argue that those individuals are within the ‘jurisdiction’ of the country providing evidence. There are a couple of unique situations in which international human rights law has been found to apply to individuals extraterritorially. These include where an individual is under that country’s effective control (eg prisons operated in Iraq by allied forces) or for particular rights such as the issuing of a passport or the enforcement of a judgment in absentia. When you analyse these extraterritorial situations, they seem to be fundamentally different from a person about whom a foreign country facilitates providing evidence.
I therefore argue that international human rights law does not create any obligations with respect to law enforcement cooperation or mutual legal assistance. This is not to say that there should not be legal obligations, just that they do not currently exist under international human rights law. Any attempt to create obligations needs to engage with the complexity of the issue, not just assume that the same rules that apply to extradition can be applied to evidence-sharing.
The treaties that create evidence-sharing relationships provide some protections by specifying situations in which the requested country may refuse to provide evidence. Such situations include where the death penalty would be imposed or there is a real risk of torture. However, this is permissive rather than mandatory. Moreover, MLATs and agreements on law enforcement cooperation are negotiated on an ad hoc basis and there is no uniformity in approach. In the end, it all comes down to the particular policies of the administration that negotiated the treaty and the policies in place at the time that it is asked to provide the evidence.
The government makes decisions about which countries it is appropriate to enter into evidence-sharing relationships with and on what terms. There is also scope to make decisions about specific requests. For example, the requested country may specify that evidence will only be provided if the other country gives certain assurances (eg not to impose the death penalty). Enforcement of such undertakings is a diplomatic matter. In this way, the responsibility to make the right decisions about who to do business with and on what terms is largely a matter for the executive.
The system is further complicated when third parties hold the requested evidence, and these parties have their own relationship with the owner of the information. The most pressing current example is online records. Companies such as Google and Facebook hold large amounts of user data and many of their users reside in foreign jurisdictions. The relationship of trust between these companies and their users is a valuable part of their business. Being a good corporate citizen and cooperating with law enforcement to combat crime may also be important, but the priorities are not necessarily always compatible.
This somewhat changes the assumption that evidence-sharing can be handled adequately on a purely diplomatic basis because you have an additional party with a different set of interests. This is not a new problem; for many years, countries have been sharing bank and telephone records. However, the scale of the issue has certainly grown, with users storing more and more personal data online and increasing numbers of these users being in different jurisdictions from the tech companies.
These companies can scrutinize the requests that flow through from the Department of Justice or law enforcement to ensure that the legal requirements have been met. However, where the discretion is a matter for the executive, the companies have limited options. It is for the government to decide whether the other country’s justice system is adequate or undertakings are sufficient. Provided that the other legal requirements are met, the company is obliged to hand over their user’s information. Essentially, the system is based on trust that governments will do the right thing.
The increasing role of third party holders of information brings another dimension to the question of civil liberties protections in international evidence sharing. It means that there is a new voice in the debate. While governments have tended to keep evidence sharing confidential, tech companies are increasingly going public about government requests for user data. Companies may challenge government requests in the courts on behalf of their users and raise public awareness about any perceived deficiencies in the laws. What has tended to be an obscure area of government practice where the lack of legal protections has gone largely unnoticed now has the potential to become an issue of public discussion and concern.