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  Division of Forensic Services (DFS)  

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About ISP > Department Organization > Division of Forensic Services

The Division of Forensic Services (DFS) strives to improve the effectiveness of the criminal justice community and enhance public safety by delivering accurate, complete, and timely crime scene evidence collection and forensic laboratory analysis. These services are provided at no cost to state, county, and municipal law enforcement agencies throughout Illinois.

The DFS is comprised of two separate commands, the Forensic Sciences Command and Crime Scene Services Command. The DFS enforces strict quality assurance measures across both commands to ensure accurate forensic services are delivered. The Forensic Sciences Command laboratories have been accredited to conduct forensic testing by adhering to the ISO/IEC 17025 general requirements for competence of testing laboratories (including additional forensic requirements) and the FBI Quality Assurance Standards (for both DNA Testing and Databasing Laboratories). To maintain accreditation, the forensic science laboratories must adhere to stringent standards of quality and sound scientific practice.

Forensic Sciences Command

The Forensic Sciences Command (FSC) administers six operational laboratories across the state providing evidence testing in the areas of forensic biology/DNA, firearms/toolmarks, latent fingerprints, drug chemistry, trace chemistry, toxicology, and microscopy. In addition, a DNA Indexing laboratory processes DNA profiles mandated by law to be entered into the state-level database. The FSC also operates a Research and Development laboratory where new technologies are evaluated and validated before being implemented in the laboratories and used on actual forensic cases.

Forensic Scientists working within the FSC regularly employ forensic databases to help solve crimes. The Combined DNA Index System (CODIS) permits unknown DNA profiles recovered at crime scenes to be searched against DNA profiles from known individuals or from other unsolved cases to identify potential suspects. Similarly, unknown fingerprints are entered into the Automated Fingerprint Identification System (AFIS) and searched against millions of known fingerprints to identify potential perpetrators. Firearms evidence may be entered into the National Integrated Ballistic Information Network (NIBIN) in an attempt to link firearms used in various violent crimes.

Crime Scene Services Command

The Crime Scene Services Command (CSSC) is broken down into five geographic regions which cover the entire state of Illinois. Approximately 40 sworn crime scene investigators (CSIs) are assigned to these regions with the goal of responding to violent crime anywhere in the State within one hour. CSIs are trained in photography, crime scene mapping, evidence processing, and evidence handling and packing. Several CSIs receive additional training in forensic art and blood-stain pattern analysis. These disciplines help identify suspects based on witness descriptions and reconstruct events at crime scenes where bloodshed occurred, respectively. On-site polygraph services are also provided by civilian examiners working throughout Illinois.

Civilian personnel assigned to the CSSC provide services in addition to crime scene processing and evidence collection. Polygraph Examiners provide on-site polygraph services throughout Illinois. The Forensic Diagramming and Animation Section and the Imaging Section generate computerized courtroom diagrams, forensic animations, three-dimensional models, and photographic images and enhancements for use as demonstrative aids in criminal court.

  DFS Contact Info  

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Illinois State Police
Division of Forensic Services
801 South Seventh Street
Suite 900-S
Springfield, IL 62703
(217) 785-7542
 

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Forensic Sciences Command