Nevada Police Can Now Track Cellphones Without a Warrant

“Nevada quietly signed an agreement earlier this year with a company that collects location data from cellphones, allowing police to track a device virtually in real time,” reports the Associated Press. “All without a warrant.”

The software from Fog Data Science, adopted this January in Nevada through a Department of Public Safety contract, pulls information from smartphone apps in order to let state investigators identify the location of mobile devices. The state is allowed more than 250 queries a month using the tool, which allows officers to track a device’s location over long stretches of time and enables them to see what Fog calls “patterns of life,” according to company documents from 2022. It can help them deduce where and when people work and live, with whom they associate and what places they visit, according to privacy experts… Traditionally, police must obtain a warrant from a judge to access cellphone location information — a process that can take days or weeks. And while cellphone users may be aware that they are sharing their location through apps such as Google Maps, critics say few are aware that such information can make its way to police…

Other agencies in Nevada have been known to use technology similar to Fog. In 2013, Las Vegas Metropolitan Police Department acquired something known as a cell-site simulator that mimics cellphone towers and can sweep up signals from entire areas to track individuals, with some models capable of intercepting texts and calls. Police have not released detailed information about the technology since then.

“Police in other states have said the technology (and its low price tag) has helped expand investigatory capacity,” the article adds.

But it also points out that Fog Data Science has a web page letting individuals opt out of all their data sets.