An Illinois State Police trooper has been arrested and charged with sexual abuse and sexual assault, according to an official statement released by the Illinois State Police (ISP). James T. Dierkes, 29, was taken into custody on Friday following an investigation by the ISP’s division of internal investigation. The charges against Dierkes include one count of aggravated criminal sexual abuse and criminal sexual assault, as reported by KSDK.
The investigation was initiated on December 3rd after the State Police received a request for assistance from the Vandalia City Police Department concerning allegations of criminal sexual assault against Dierkes. The alleged incidents occurred in 2016, during Dierkes’ employment at Vandalia Community High School, prior to his joining the ISP.
Following the request from Vandalia PD, ISP agents launched a thorough investigation into the allegations. A victim came forward stating that she and Dierkes had inappropriate sexual contact on multiple occasions while he was employed at the high school. The investigation subsequently uncovered another victim who alleged similar inappropriate sexual contact with Dierkes on multiple occasions.
Dierkes was immediately relieved of duty upon his arrest and is currently being held at the Fayette County Jail pending charges. His bond has been set at $1,000,000.
Illinois State Police Director Brendan F. Kelly emphasized the seriousness with which the ISP treats such allegations. “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 Director 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 stated that it conducts extensive background checks during the employment application process. Dierkes’ background investigation included his employment at Vandalia Community High School and, at the time of his application, showed no evidence of criminal misconduct or activity, according to the report.