Aside from professional medical cannabis, cannabis is illegal in Germany. In-spite of the, the regulation is fairly lenient about the recreational use of cannabis. In the event the police obtain you carrying 15g or much less of weed, they'll get you down to the station for mugshots and questioning. https://cannabis-crew.com/2023/10/10/how-to-order-weed-online-in-frankfurt-germany-as-a-tourist/