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Do you have that in your cars too? FeuerwehrWilli explains what you should pay attention to in the event of a traffic accident or when providing (technical) assistance. An orderly process helps everyone to work quickly and effectively. Part 1: • WHO does WHAT (Part 1 of 3) according to FwDV3 Part 2: • WHO does WHAT (Part 2 of 3) according to FwDV3