German police on Wednesday carried out raids across seven states targeting climate activists of the "Letzte Generation" (Last Generation) group, which has sparked controversy with protesters glueing themselves to roads to block traffic.
Senior police officers ordered the potentially unlawful arrests of four journalists detained while covering climate protests on the M25, a review has found.
New rules curtailing protests have alarmed some who fear an erosion of civil rights. They come as environmental protesters have intensified their tactics to draw attention to climate change.
Ministers are pressing ahead with a dual crackdown on climate protests and strike action, a controversial move that followed a day of direct action in London including clashes with the public and milk poured on the floor of Harrods.