With the popularity of smart devices on the rise, their prevalence in the courtroom is increasing. In 2018, police used Karen Navarra’s Fitbit fitness tracker to find her murderer. Police accessed the recorded information and determined that her heart rate spiked then dropped significantly while her stepfather was in her house. Due to neighbors reports and the information from Fitbit, police were able to determine her stepfather was the murderer. This is not the first time Fitbit’s technology has been used by police to solve crimes. In 2015 Fitbit provided location data in association to a sexual assault and personal injury case, and in August 2018, Fitbit data helped the…