Street medics provide medical first aid to the participants of demonstrations, often having to stay close to clashes to case their help is needed. During G20 protests some became victims themselves, as the legal aid reports.
In a press release the legal aid (Ermittlungsausschuss) mentions (Press release #14):
Tending to the injured
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Welcome to Hell demonstration: Street medics tend to an injured person at the Hafenstrasse promenade while around them other protesters still climb over the wall. By Risande Tyskal
Several journalists hat their press accreditation to the G20 meeting withdrawn by the BKA. Renate Angstmann Koch of the German Journalists Union (DJU) talked about journalistic work and restrictions during the G20 at the press conference on 8 July 2017.