CHICAGO (AP) — A Democratic senator said the U.S. Justice Department needs to look into whether the algorithm-powered police technologies it funds contribute to racial bias in law enforcement and lead to wrongful arrests.

Sen. Ron Wyden, an Oregon Democrat, was responding to an investigation by The Associated Press published Thursday about the possibility of bias in courtroom evidence produced by an algorithm-powered technology called ShotSpotter. The system, which can be funded by Justice Department grants, is used by law enforcement in more than 110 U.S. communities to detect and respond to...