Klette was arrested in February 2024, in central Berlin, where police said she had been living as "Claudia Ivone" for some 20 years. It remains unclear how she was able to evade authorities for decades, but Hans-Jakob Schindler, senior director at the Counter Extremism Project (CEP) think tank, said that extremist left-wing networks remain notoriously difficult for German police to infiltrate or to gather information on.