The ARGO Case - Diplomatic immunity in a cross-border terrorism case

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A terrorist attack, planned to take place in France on 1 July 2018, was prevented through the actions of the Belgian authorities and their partners in Germany, France and Luxembourg. Based on information from their security services, the law enforcement services arrested several suspects and dismantled an explosive device before the planned attack.

At both the arrest stage and coordination of investigative measures, as well as during court proceedings, this case was heavily influenced by the fact that one of the targets held a diplomatic passport and claimed diplomatic immunity.

This case is an important example of cross-border cooperation in a terrorism case. Following a request from the Belgian authorities, Eurojust facilitated the issuance and execution of multiple judicial instruments and the coordination among authorities on complex legal issues.

The report provides a summary of the case and presents the arguments brought forward by the prosecution service in reply to the diplomatic immunity claims. It dedicates a section to the support provided by Eurojust to all countries involved and it ends with some key findings from the judgment of the court of first instance.




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