System Improvement Act in prohibiting employers from terminating employees "by reason of" jury service as meaning "but-for" causation. That means that the employee must show that the termination of employment would not have occurred "but for" the jury service. That is a higher burden for the plaintiff employee than merely showing that the jury service was a motivating factor for the termination. See also If and only if Proximate cause Causation Four causes Raison d'être List of Latin phrases References Latin legal terminology Latin medical words and phrases Latin political words and phrases Latin philosophical phrases