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Due Process Chicago Offers  Personalized Service for Your Private Investigative Needs

When you find yourself in a situation that calls for important information that you need help obtaining, turn to the private investigators at Due Process Investigations. Due Process is a privately owned and operated, State of Illinois licensed private investigation agency that offers a wide range of specialized services in the field of private investigation in the Chicago area. Using the most innovative strategies and resources available, our professionals are skilled in what it takes to produce effective results for their clients. We have been servicing the metro Chicago area for more than 30 years and have become one of the most trusted names in the industry.

At Due Process Chicago, our detectives come from diverse backgrounds of experience that contribute to their effectiveness as private investigators. We draw from the very best of federal, state and local law enforcement agencies and departments. In addition, we have many military veterans. Our detectives have impeccable records and extensive investigative experience. All of our private investigations are conducted confidentially, with integrity, reliability and professionalism. Our investigators have received commendations from their law enforcement agencies, judges, district attorneys, defense attorneys and private clients. Due Process has access to a national network of investigators including the Federal Criminal Investigators Association, Federal Law Enforcement Officers Association and other professional private investigative and security trade associations.

We conduct investigative, analytic and advisory assignments worldwide, and employ a wide range of traditional investigative techniques, together with a unique suite of proprietary technologies commercialized from the intelligence services. Founded in 1987, our performance has gained us a reputation for independence, insight and an ability to drive a positive result.

At Due Process Chicago, we begin every engagement by giving serious consideration to the legal and operational issues to conform our conduct to the ever-shifting boundaries of the law. We employ multiple redundant levels of legal oversight so that our clients get the required results, without unexpected liabilities.

We routinely operate in tightly scripted environments, paying strict attention to applicable laws. We conduct thorough investigations that don’t invade anyone’s privacy, and we scrupulously avoid steps that—even if legal—might undermine your interests. Our results stand up to scrutiny by judges, juries, he press and the public.

We realize that utilizing the services of a private investigator for the first time can be an unnerving experience. Allow yourself the comfort of knowing that you have retired Special Agents working for you. When you hire an Ex-Special Agent you know you are hiring an experienced, trained and dedicated individual who knows how to get your job done right!

Due Process Chicago offers you the experience, knowledge and training you can trust. We make sure your needs are met. All our investigations are conducted with the strictest confidentiality to protect your privacy, while complying with all Federal and State Privacy Laws, including the Fair Credit Reporting Act (FCRA). Bi-lingual investigators are available. All of our investigators are licensed to carry a concealed weapon.  The level of professionalism and expertise at Due Process is unsurpassed in the industry.

What Sets Us Apart

• A single minded focus on investigation
  We specialize in one thing: digging into questions that concerns our clients.

• A demystified approach to investigation
  No secret-squirrel stuff. From proposal and planning through reporting our findings, we give you a clear view of the investigative process.

• A straight-forward relationship with our clients
  Decades of working with titans of the legal and financial worlds have taught us to listen closely to your needs, prohibitions and deadlines—and appreciate your own investigative skills and capabilities. We extend your reach, taking a collaborative approach to achieving a common goal.

• A clear presentation of findings
  No data dumps. Our briefings and memos distill key facts and sharpen your understanding. We use innovative, full-color graphics to illuminate complex fact patterns such as relationships, money flow and chronology. And our memos sit on top of a stack of source documents.

• A high ethical standard
  We pay strict attention to applicable laws in conducting our investigations. We conduct thorough investigation without violating anyone’s privacy.

• Strict budgets and tailored billing methods
  We communicate clearly with our clients about how much our investigations cost. We work in clearly budgeted phases, allowing you to maintain control of both the investigation and its cost.

• Unmatched Credentials and Experience

Are investigative services affordable?

Instead the question most on your mind should be: How much will my problem cost if I don’t hire a PI?

Due Process Chicago is cost effective and affordable. You pay for expert knowledge, no-nonsense skills, and hi-tech resources of an experienced investigator who will often complete your case in a few hours. We also offer flat rates and a variety of payment plans. We have saved insurance companies, employers, and businesses millions of dollars each year by uncovering fraud, stopping theft, and recovering assets.

Wide awake

We answer the phone 24/7. We hover over your target anytime and anywhere. And we are relentless, until you get that must-have piece of information.

What We Do

Due Process Investigations | Professional Risk Mitigation & Investigative Services

Strategic Evidence Gathering & Fact Verification for Legal and Corporate Clients.

Due Process Investigations provides comprehensive risk-mitigation solutions tailored to the needs of legal professionals, corporations, and private entities. Our investigators specialize in obtaining critical evidence, verifying complex facts, screening for fraud, and identifying operational risks.

Based in the Chicago metro area, we provide localized expertise across the State of Illinois and maintain a strategic network to support National and Global Due Diligence requirements. Clients trust Due Process to deliver effective, client-focused solutions—often within 7 days or less.

Core Investigative Capabilities:

• Litigation Support: Expert fact-finding and evidence gathering to support legal proceedings and criminal defense.

• Corporate Due Diligence: Comprehensive vetting of business entities, domestic and international partnerships, and high-level personnel.

• Fraud & Internal Investigations: Identifying and mitigating financial irregularities, internal theft, and corporate malfeasance.

• Asset & Risk Assessments: Strategic analysis of physical and intellectual assets to identify vulnerabilities before they result in loss.

• Global Vetting & Research: Utilizing a sophisticated network of specialized agents to provide background verification and risk advisory for domestic and international interests.

Services include:

Legal & Litigation Support

• Civil & Criminal Defense Investigations: Professional fact-finding and evidence gathering for legal counsel.

• Due Diligence & Bankruptcy Research: Comprehensive background and financial vetting for legal proceedings.

• Professional Witness Services: Conducting formal interviews, statements, and affidavits for litigation.

• Specialized Process Service: Reliable delivery of legal documents for existing corporate and legal clients.

Corporate & Business Risk Mitigation

• Operational Integrity & Internal Investigations: Identifying and mitigating fraud, internal theft, and trademark counterfeiting.

• Competitive Intelligence & Due Diligence: Strategic vetting of business entities and market competitors.

• Quality Control & Loss Prevention: Specialized audits and investigations to ensure business continuity and asset protection.

Insurance & Claims Advisory

• Claims Verification: Professional field investigations and interviews to verify the legitimacy of insurance claims.

• Specialized Evidence Gathering: Utilizing advanced observation and documentation to support claims management.

Technical & Protective Services

• Technical Surveillance Counter-Measures (TSCM): Utilizing advanced technology for internet and computer-based risk assessments.

• Executive Risk Consulting: Low-profile protective surveillance and workplace violence prevention for corporate leadership.

• Strategic Asset Tracking: Utilization of GPS and secure monitoring for high-value logistics and cargo.