A 29-year-old State Trooper from Greenville has been arrested for sex offenses that occurred during his earlier employment at Vandalia Community High School.
James Dierkes was arrested on one count each of aggravated criminal sexual abuse and criminal sexual assault following an investigation by the Illinois State Police Division of Internal Investigation. He was taken into custody on Friday and relieved of his duties. Bond has been set at $1-million. Dierkes remains in the Fayette County Jail.
State Police say they received a request for assistance from the Vandalia City Police department on Tuesday, regarding allegations of criminal sexual assault made against Dierkes while he was working at Vandalia High School in 2016.
ISP Agents conducted a thorough investigation into allegations made by a victim who stated that she and Dierkes had inappropriate sexual contact on multiple occasions during his employment at the Vandalia Community High School. The investigation led to another victim who alleged she also had inappropriate sexual contact with Dierkes on multiple occasions.
“Illinois State Police Special Agents treated the victim’s allegations as credible and within hours of disclosure initiated an investigation leading to these charges,” said ISP Director Brendan F. Kelly. “ISP agents are fiercely protective of brave crime victims and fiercely protective of the integrity of the Illinois State Police so we urge any victims to come forward.”
The ISP conducts lengthy, rigorous employment background checks during the application process. Dierkes’ extensive background investigation included his employment at Vandalia Community High School and showed no evidence of criminal misconduct or activity at the time of his application.
Dierkes has been employed with the ISP since June of 2018. Anyone wishing to provide additional information is encouraged to call the ISP at (217-622-0924).