Berlin Power Outage Suspects Challenge Seizure of Mobile Devices

Following the sabotage of the power supply at Berlin's Adlershof technology park in September 2025, four individuals identified as suspects by authorities are contesting the examination and seizure of their mobile phones and electronic devices. The Berlin Public Prosecutor's Office has confirmed that these individuals are actively pursuing legal measures to prevent their confiscated equipment from being analyzed for evidence.

The investigation centers on an incident that caused significant disruption to the Adlershof technology park, a prominent area hosting companies and research institutions in sectors such as information technology, robotics, biotechnology, nanotechnology, aerospace, and security and defense industries. The attack resulted in a substantial power outage, temporarily affecting approximately 50,000 private households and 2,000 businesses in southeastern Berlin. The event was claimed in an online statement as a targeted strike against the technology park and its residents.

Authorities attribute the sabotage to individuals allegedly associated with the far-left extremist scene. In March, a large-scale police operation targeted the suspects, during which a number of mobile phones and advanced electronic devices were confiscated. These devices are believed to have been used to detect surveillance equipment such as cameras, bugs, and microphones. Investigators interpret the use of such technology as an indication of a highly secretive approach by the suspects.

Legal representatives for the accused have filed appeals against the search warrants and the confiscation of the electronic devices. The Berlin Public Prosecutor's Office has stated that a decision on these appeals is still pending. Should the appeals be successful, the devices would have to be returned and their contents could be excluded from use as evidence in the ongoing legal proceedings.

On the night of September 9, 2025, a fire destroyed a high-voltage cable in the southeast of the city, prompting widespread power outages. The online statement taking responsibility for the incident specified that the action targeted the technology park and its associated enterprises. The temporary blackout caused notable disruption to both residential and commercial sectors in the affected region.

In a related case, the Federal Criminal Police Office has reported progress in the investigation of a separate arson attack that occurred in January 2026 in Berlin's southwestern districts. This incident targeted a cable bridge near the Lichterfelde power plant, leaving around 45,000 households without electricity for several days. Responsibility for this attack was claimed by a group identified with far-left extremist views.

Authorities have noted increased successes in combating left-wing extremist violence, a trend that has garnered international attention. Recent discussions in Washington, convened by the US State Department and attended by representatives from over 60 countries, addressed the transnational nature of left-wing extremist terrorism. Germany's Federal Ministry of the Interior participated in these talks, during which the Berlin power outage was cited as a notable example of such attacks and their impact.

Security agencies are reportedly intensifying their efforts in this area, emphasizing the importance of international cooperation to address the growing threat posed by organized acts of sabotage against critical infrastructure. Investigations remain ongoing as authorities work to identify all individuals involved and evaluate the legal admissibility of evidence gathered through electronic device seizures.