Intelligence sharing between intelligence and police services with a view to preventing and combating terrorism is high on the political agenda in Brussels and The Hague. The Netherlands is one of the few countries in the EU where this topic is subject of political scrutiny. It also led to controversial case law. Recently, Justice Minister Donner has used an expedited procedure to submit a legislative proposal concerning shielded witnesses. This Bill raises many questions, that concern, amongst others, the discretion of intelligence services to determine which information will be provided for use in criminal proceedings and the relationship between this discretionary power and the connected legal duty of secrecy on the one hand and the rights of the defence to test and question that information on the other. Furthermore, questions raise regarding the evidentiary quality of this information. The proposed rules also influence the legitimacy of criminal law and the position of the criminal courts. What effect does the paradigm of security-orientated thinking have on the historical connection between criminal law and the rule of law? This issue is also addressed in this article.