What is the “advertising master” really allowed to do? When private individuals go on a speeding ticket spree. The 18-year-old gained nationwide fame with his strange hobby through a Spiegel TV report.

His goal is to report illegal parking in every city nationwide. According to his own statement, he will have generated 140,000 euros in 89 cities and municipalities in 2023 alone. But is it actually legal what the advertising master does? After all, Matthei takes photos of the cars with the license plates.