»Motivational Offenses. A German-French Criminal Law Comparison«: This comparative criminal law dissertation analyses the group of offences in German and French law which criminalise certain expressions considered to be at risk of promoting crime: the so-called motivational offences. This work further, offers an in-depth analysis of the relevant fundamental questions of criminalisation in the preparatory phase of the commission of crimes and has led to new and convincing insights into the dogmatic and constitutional limits of motivational offences.