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Discover more about private investigators capability, employment and regulations in Illinois.

Discover more about private investigators capability, employment and regulations in Illinois.


ICS provides a full range of private investigations in Illinois, which are performed by licensed Illinois private investigators. Our investigators are committed to providing affordable, reliable service in your area and reporting their results in a timely, accountable manner. Contact us today to begin your case.


Local Illinois Private Investigator

Private Investigators in Illinois are required to be licensed in order to conduct Private Investigation services. If your investigation requires the case to move out of state, the private investigator must still abide by any out of state licensing requirements.

Illinois Private Investigator


You can be assured of receiving competent and diligent service, no matter what your investigative needs. 

A private investigator in Illinois must apply to the Illinois Division of Professional Regulation and pass licensing requirements, including a thorough background check. While many Illinois private investigators come from a law enforcement or military background, it is not a requirement for employment as a private investigator. Often times a degree in Criminal Justice or other security and investigation work can be just as important to prospective employers. In the State of Illinois, it is against the law to provide the services of a private investigator without a Illinois Private Investigator License. You can rest assured that any Illinois private investigator assigned to your case with ICS is an authorized employee or contractor, fully licensed and insured in accordance with Illinois State Laws and participates in the required continuing education.

Workers' Compensation Fraud Investigation

Workers’ compensation fraud investigations can help to examine the validity of a workers’ compensation claim. Unfortunately, people exaggerate the extent of their injuries or outright lie in order to obtain extra compensation or benefits that they truly are not entitled to.

Our team of Illinois private investigators knows this better than most. For years, ICS investigators have been performing Workers’ Compensation and Insurance Investigations for a diverse range of companies. The primary focus of our workers’ comp investigations is to find fraudulent injury claims which can help employers and insurance companies save thousands of dollars. During the workers comp investigation process; we will perform the necessary surveillance and investigation activities in order to uncover the truth. After conducting a thorough fraud investigation, our private investigator can then provide a complete report, listing our findings and documenting any specific evidence we uncover. Overall, our workers compensation investigation services will help discover fraudulent workers compensation claims and provide the evidence and proof needed to defend against false claims. If you believe you need help investigating a Workers' Compensation Claim then call the professionals with ICS.

Adultery, Infidelity or Cheating Spouse Investigations

If your spouse or significant other is cheating, you deserve to know the truth. As difficult as it may be to come to terms with the fact that your loved one is having an affair, you are going to need to get all the facts and protect your interests and well being. Coping with infidelity is not easy, but living with it is worse. A Illinois private investigator at ICS can help you determine whether or not your loved one is being unfaithful with an Adultery, Infidelity or Cheating Spouse Investigation. Some common signs of cheating are: excessive or discreet use of the computer, spending more time at work, hiding their phone, credit card, or bank accounts histories, excessive arguing of facts related to time, blaming, defensive behavior, negative projections behavior - accusing you of an affair, lack of sexual interest or abnormal renewed sexual interest, abnormal call activity at the home or cell phones - hang ups and long tones, removal of pictures or photos from wallet, lost wedding ring, etc. If your spouse or loved one is exhibiting some or all of the common signs of cheating, you should contact ICS today to begin a case and discover the truth. Our infidelity private investigators in Illinois will conduct a thorough investigation of the suspected cheater and provide you with our findings so that you can make the most informed decision for your future.

Child Custody, Visitation, and Support Investigations

The most important factor in determining the custody of a child is the child's welfare. The best interest of the child is evaluated by a court based on a set of guidelines to ensure the child has a safe, healthy, loving and stable environment. Once custody has been determined, visitation arrangements are made for the parent without custody. Although it is important, normally, that each parent or known guardian remain a strong part of a child’s life, it is equally important that your child not be in an unhealthy environment. If you believe that the best interests of your child are not being met with the current child custody or visitation arrangements, ICS can help you in your efforts to prove your case, documenting the evidence to support your claim, with a Illinois Child Custody Investigation. During the course of a child custody or child visitation investigation, ICS may interview friends, neighbors, relatives, school employees, doctors and day care workers.

The Office of the Attorney General of Illinois, County States Attorneys and the Department of Healthcare and Family Services are mandated under state law to enforce court orders and collect child support. Typically, these agencies are understaffed and limited in their ability to find deadbeat parents and hold them accountable. In addition, the government’s investigative techniques are both predictable and superficial, and deadbeat parents quickly learn how to live beneath the radar and avoid being located. Fortunately, the private investigators at ICS are better equipped to quickly locate, and build a case against a deadbeat parent. ICS will use methods such as surveillance, hidden asset checks, public records searches, skip-tracing, undercover operations and others services in a Illinois Child Support Investigation.

Missing Person and Locate Investigations

Illinois Private Investigation

Traditionally, it is seen as law enforcement's job to locate missing persons, especially in the case of a kidnapping. However, due to statewide budgetary cuts, local law enforcement agencies are severely understaffed and lack the resources necessary to adequately investigate all instances of missing persons. In addition, police will sometimes overlook missing persons cases unless evidence of criminal activity exists. If you are searching for a lost loved one, and old friend from school, a debtor that owes you money, or other lost person, you will need to turn to a private investigator rather than the police to begin an investigation. ICS can assist you with a Missing Person or Locate Lost Person Investigation to discover the whereabouts of someone who is not easy to find. ICS can also perform a Birth Parent Locate Investigation in Illinois on your behalf. If you need to locate a lost or missing person, and need results that you can't obtain elsewhere, contact ICS to begin your case.

Background Check and Pre-Employment Screening

Do you need a background check performed on an individual in the State of Illinois? Are you in Illinois and need a background check performed elsewhere? ICS can provide this service and many others. Background checks are one of the most well known and useful investigation tools a private investigator can provide. Sometimes a background check is all a client needs and other times it is merely the first step into a more in-depth investigation, providing clues and leads for the investigator and client to pursue. Background checks are also an important part of the Pre-Employment Screening Services offered by ICS. If you need Pre-Employment Screening services, a background check or an investigation involving one, the professionals at ICS are ready to work for you to provide the discreet and confidential service you need. ICS has been helping people in Illinois just like you get results since 1967.

Computer and Cellular Forensics

ICS private investigators in Illinois are skilled and experienced in providing computer forensics investigations in Illinois to scientifically analyze the data held on, or retrieved from computer storage media in such a way that the information can be used as evidence in a Illinois court of law. Our Illinois computer forensics investigators securely collect the suspect data and exam its contents based on the purpose of the investigation. Computer forensics investigators at ICS in Illinois provide services such as: data recovery of emails, instant messages, and all types of files, virus and spyware detection and removal, email tracing, pornography detection, computer and network intrusion detection and prevention, internet history evaluation, hidden files detection, and more. Our forensic technicians are knowledgeable and available to provide these services for desktop computers, laptops, network servers, digital cameras, media cards, smart phones including the iPhone, and most other forms of media and data storage. If you need a computer forensics investigator, click now to begin a Computer Forensics Private Investigation.


Illinois Detective Agency

Private Investigation Cases Map for in Illinois


Case Studies


Paper and Press Releases



Local Associations and Important Resources for Illinois

Associated Detectives & Security Agencies of Illinois, Inc.

Website: https://www.the-adi.com/

The State of Illinois Official Website

Website: https://www.illinois.gov/

Illinois Division of Professional Regulation

Website: https://www.idfpr.com/dpr/

Illinois General Assembly

Website: https://www.ilga.gov/

About Illinois:

https://en.wikipedia.org/wiki/Illinois





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