Every day there are more and more lovers of active driving on public roads, and the laws prohibiting such a ride are also biased and blurred, so this issue is relevant today. This article discusses the 2016 SDA Law on Dangerous Driving, what it implies and what weaknesses are inherent in it. It has also been proven that at the moment there is no objective method of fixing dangerous driving. To solve this problem, a methodology for real tests on a car using measuring equipment based on a smartphone was developed. After the tests, a large amount of data was processed. After analyzing them, the boundaries of dangerous driving were identified in a mathematical and graphical way, on the basis of which it would be possible to develop a mobile application capable of real-time monitoring of the nature of the car’s movement and, if the limits of safe driving were exceeded, automatically write a fine to the driver of the vehicle.