Which court case addressed the Judicial Notice of the Doppler Principle?

The correct choice is associated with the court case that specifically examined and recognized the principle of Doppler shift in the context of judicial notice. Judicial notice allows a court to recognize certain facts as universally accepted without the need for proof. The Doppler Principle, which dictates how the frequency of a wave changes in relation to an observer moving relative to the source of the wave, is crucial in understanding the functionality of various radar systems used for speed detection.

In "State vs. Hanson," the court addressed whether the principles of the Doppler effect could be accepted as established fact within the judicial process, specifically as it relates to the accuracy and reliability of radar evidence. This case indicates that the judiciary can take notice of scientific principles like the Doppler effect, facilitating the use of radar technology in law enforcement for speed enforcement and other applications.

This decision underscores the importance of scientific principles in legal settings and illustrates how courts incorporate established scientific understanding into legal evidence, particularly in cases involving technology that relies on such principles.