Hamburg court blocks Russian Nord Stream operators from joining pipeline sabotage trial

Rejection of co-plaintiff status

The Hanseatic Higher Regional Court in Hamburg rejected an application by Nord Stream AG and Nord Stream 2 AG to participate as co-plaintiffs in the criminal trial concerning the Baltic Sea pipeline explosions. The ruling was issued on Wednesday by the court's 3rd Criminal Senate and published on Friday, 2 October 2026. Both pipeline operating companies, which are controlled wholly or partially by the Russian state gas consortium Gazprom, sought to join the public prosecution under section 395 paragraph 3 of the German Code of Criminal Procedure. The judges concluded that the applicant companies failed to demonstrate a special procedural need for protection stemming from severe consequences of the offense. As a result, the court restricted the forthcoming proceedings exclusively to the criminal liability and guilt of the accused, excluding corporate compensation and Russian reparation claims from the trial scope.

Assessment of pipeline repair costs

In their petition, the operating companies argued that the physical destruction of the conduits represented an existential damage that justified their formal intervention as joint plaintiffs. The 3rd Criminal Senate dismissed that economic assessment by comparing estimated restoration expenditures with the initial capital outlays required to build the energy links. According to operator data submitted to the court, technical repairs would require a mid-triple-digit million euro sum for each individual pipeline. In contrast, total construction costs reached 7.4 billion euros for Nord Stream 1 and 9.5 billion euros for Nord Stream 2. The judges stated that because restoration expenses comprise only a fraction of original construction costs, the damage cannot be classified as a total economic loss under standard business metrics.

Limits on broader economic and operational claims

The court also determined that wider financial impacts resulting from political decisions following Russia's invasion of Ukraine cannot be attributed legally to the pipeline detonations. Deliveries through Nord Stream 1 had already been severely restricted or stopped completely by the Russian side prior to the blasts, while Nord Stream 2 was never commissioned for commercial transit. The senate also noted that the physical damage did not impair the procedural capacity or operational functioning of either corporate entity or its governing bodies. Furthermore, judges found no indication that the accused plans to shift blame onto the pipeline corporations during the main hearing in a manner requiring active defensive participation. The court emphasized that a criminal trial does not serve to uncover every secondary actor or address wider geopolitical disputes.

Upcoming trial and criminal charges

The criminal proceedings against Ukrainian citizen Serhij K. are scheduled to open before the Hanseatic Higher Regional Court in Hamburg on 14 October 2026. Federal prosecutors have indicted Serhij K. as an alleged co-perpetrator of a war crime involving the use of prohibited methods of warfare against civilian infrastructure. The indictment also charges the defendant with causing an explosion using explosive materials, destroying engineering structures, and disrupting public utility operations. The charges follow the multi-point underwater detonations in September 2022 near the Danish island of Bornholm, which disabled both gas transport systems. German authorities noted that two Ukrainian nationals are suspected of belonging to the operational cell that executed the sabotage, with a second suspect detained outside Germany.