sherlockInvestigative work has always been an intricate part of Illinois Security Services, Inc. Our investigators are selected from a wide variety of police agencies throughout Illinois. These investigators are among the most respected and highly decorated police officers in their field.

Our investigation team uses the most advanced surveillance technology available. They have specialized training in video and audio surveillance techniques, as well as a technological support staff to properly piece together all areas of the investigation.

These investigators possess an added fortitude that only comes from years of practical law enforcement experience. This leads to a more precise and well-rounded investigative team.

Our experienced and seasoned investigators have the latest technology, make them second to none in the field of investigative services.