RADAR-iTE is an actuarial risk assessment instrument developed specifically for the German Police in the field of state protection. The purpose of the instrument is the prioritization of individuals of the Islamist spectrum known by the police in terms of their risk to commit politically motivated serious violence in Germany. The specific requirements of an instrument developed for the police and the adapted research process are outlined. This is followed by the description of the evaluation and revision of the instrument after one year of application by the German police. The result of this process, the current version 2.0 of RADAR-iTE is introduced and an insight into the implementation process of the instrument is also provided. Finally, the limitations of RADAR-iTE are discussed