The tool is the product of a growing industry whose work is usually kept from the public and utilized by police.

A Michigan State police contract, obtained by The Intercept, sheds new light on the growing use of little-known surveillance software that helps law enforcement agencies and corporations watch people’s social media and other website activity.

The software, put out by a Wyoming company called ShadowDragon, allows police to suck in data from social media and other internet sources, including Amazon, dating apps, and the dark web, so they can identify persons of interest and map out their networks during investigations. By providing powerful searches of more than 120 different online platforms and a decade’s worth of archives, the company claims to speed up profiling work from months to minutes. ShadowDragon even claims its software can automatically adjust its monitoring and help predict violence and unrest. Michigan police acquired the software through a contract with another obscure online policing company named Kaseware for an “MSP Enterprise Criminal Intelligence System.”