[Implementing ENT medical expert testimony in hit-and-run offenses]

The precondition to enforce a correct ENT hit-and-run expertise is knowledge of loudness and frequency of the noise of the bump. The exact anamnesis about type of car and noise production in the car such as air condition or radio helps the expert to calculate the background noise and the noise of the bump close by the ears of the driver. Measurements of the pure tone audiogram with additional wideband background noise simulating the calculated background noise in the car should be carried out in the defendant. Important is also the performance in frequency selectivity of the person indicted for hit-and-run offence. A reduction in frequency resolution proficiency reduces the loudness of the noise of bump.