David March, Joseph Walsh, and Thomas Gaffney are accused of coordinating their stories and making false police reports after the shooting death of Laquan McDonald. Prosecutors said the officers claimed in their reports that McDonald had assaulted Officer Jason Van Dyke, dashcam video evidence proved otherwise.
Van Dyke shot the teenager 16 times as he was walking away from officers. The officer was convicted earlier this month of second-degree murder and 16 counts of aggravated battery.
The officers are charged with conspiracy, official misconduct and obstruction of justice.
RELATED: Jason Van Dyke Verdict: Chicago officer found guilty in Laquan McDonald shooting trial
Officer Gaffney is suspended without pay. He was charged and suspended for allegedly signing off on reports about McDonald's shooting.
Detective March, who was the lead investigator, and Officer Walsh, Van Dyke's partner the night of the shooting, are now retired.
Like the Van Dyke trial, the judge is allowing cameras inside the court for this case.
A bench trial is set for November 26.