LOS ANGELES (AP) — Authorities are employing a new crowdsourcing tool to help with a Southern California investigation into an annual party gone awry last month that left dozens of people injured including several police officers.

The new online and mobile app is called LEEDIR, and it can be activated after a major emergency to allow people to send pictures and videos from their smartphones to investigators.

Recommended Stories

Once an afterthought, Mississippi creeps onto the Senate battlefield

Democrats stand athwart progress, yelling, ‘Stop’

HBO’s ‘War,’ with Dominic West, is a clever legal drama