Chicago Police Hid Mics, Destroyed Dashcams To Block Audio, Records Show

CHICAGO — Why are so many police dashcam videos silent?

Chicago Police Department officers stashed microphones in their squad car glove boxes. They pulled out batteries. Microphone antennas got busted or went missing. And sometimes, dashcam systems didn’t have any microphones at all, DNAinfo Chicago has learned.

Police officials last month blamed the absence of audio in 80 percent of dashcam videos on officer error and “intentional destruction.”

A DNAinfo Chicago review of more than 1,800 police maintenance logs sheds light on the no-sound syndrome plaguing Police Department videos — including its most notorious dashcam case.

Maintenance records of the squad car used by Jason Van Dyke, who shot and killed Laquan McDonald, and his partner, Joseph Walsh, show monthslong delays for two dashcam repairs, including a long wait to fix “intentional damage.”

Between Sept. 1, 2014, and July 16, 2015, maintenance technicians assigned to troubleshoot and repair dashcam systems reported 90 incidents where no microphones were found in squad cars, according to police logs.

Another 13 inspections during that period turned up only one microphone in squad cars that were supposed to be equipped with two audio recording devices, according to the logs.