Data collection from fitness tech has crime-solving capabilities

A hand wearing a FitBit.
Photo: Dave Kotinsky/Getty Images for Fitbit

With the surge in popularity of fitness trackers in recent years, the devices' data collections are playing a more present role in the legal system and process, Wired writes.

The intrigue: Fitness devices like FitBit track heart rate, sleep patterns and daily activity. In the 2018 case of California woman, Karen Navarra, her FitBit detailed the last of her heartbeat as she was murdered. Using security footage, officials began to suspect Navarra's stepfather had been to Navarra's home at the time she died, and he was later arrested on murder charges.

States turn skeptical on jailhouse informants as DNA evidence exonerates dozens

Photo: Angela Weiss/AFP/Getty Images

Some states are strengthening rules on the practice of using testimony from jailhouse informants in trials, after new DNA technology exonerated dozens of people wrongly convicted based on those informants' lies, the AP reports.

Why it matters: The credibility of jailhouse informants has always been considered suspect, since they may be motivated to reduce their own sentences by providing incriminating, but inaccurate information. Nearly a fifth of the 365 people exonerated by new DNA evidence nationwide were convicted partly based on lying informants, according to the Innocence Project.