Schmidt allegedly attacked two Forest Park police officers when they tried to arrest him and spit on a paramedic who arrived at the scene. Police say they had to use a Taser gun to subdue him.
Schmidt did not stop to talk to reporters as he left the courthouse Tuesday.
The newly formed Independent Police Review Authority is doing an investigation. Schmidt has been stripped of his police powers pending the investigation.
Schmidt is due back in court on March 18. His attorney asked for a continuance.